VERSION: Bump version up to 4.2.15...

[samba.git] / WHATSNEW.txt

                   ==============================
                   Release Notes for Samba 4.2.14
                            July 07, 2016
                   ==============================


This is a security release in order to address the following defect:

o  CVE-2016-2119 (Client side SMB2/3 required signing can be downgraded)

=======
Details
=======

o  CVE-2016-2119:
   It's possible for an attacker to downgrade the required signing for
   an SMB2/3 client connection, by injecting the SMB2_SESSION_FLAG_IS_GUEST
   or SMB2_SESSION_FLAG_IS_NULL flags.

   This means that the attacker can impersonate a server being connected to by
   Samba, and return malicious results.

   The primary concern is with winbindd, as it uses DCERPC over SMB2 when talking
   to domain controllers as a member server, and trusted domains as a domain
   controller.  These DCE/RPC connections were intended to protected by the
   combination of "client ipc signing" and
   "client ipc max protocol" in their effective default settings
   ("mandatory" and "SMB3_11").

   Additionally, management tools like net, samba-tool and rpcclient use DCERPC
   over SMB2/3 connections.

   By default, other tools in Samba are unprotected, but rarely they are
   configured to use smb signing, via the "client signing" parameter (the default
   is "if_required").  Even more rarely the "client max protocol" is set to SMB2,
   rather than the NT1 default.

   If both these conditions are met, then this issue would also apply to these
   other tools, including command line tools like smbcacls, smbcquota, smbclient,
   smbget and applications using libsmbclient.


Changes since 4.2.13:
---------------------

o  Amitay Isaacs <amitay@gmail.com>
   * BUG 11705: Fix sockets with htons(IPPROTO_RAW) and CVE-2015-8543 (Kernel).
   * BUG 11770: ctdb-common: For AF_PACKET socket types, protocol is in network
     order.


o  Stefan Metzmacher <metze@samba.org>
   * BUG 11860: CVE-2016-2119: Fix client side SMB2 signing downgrade.
   * BUG 11948: Total dcerpc response payload more than 0x400000.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the "Samba 4.1 and newer" product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


Release notes for older releases follow:
----------------------------------------

                   ==============================
                   Release Notes for Samba 4.2.13
                            June 17, 2016
                   ==============================


Although Samba 4.2 is in the security only mode, the Samba Team decided to ship
this very last bug fix release to address some important issues.


Changes since 4.2.12:
---------------------

o  Jeremy Allison <jra@samba.org>
   * BUG 10618: s3: auth: Move the declaration of struct dom_sid tmp_sid to
     function level scope.
   * BUG 11959: s3: krb5: keytab - The done label can be jumped to with
     context == NULL.


o  Volker Lendecke <vl@samba.org>
   * BUG 11844: smbd: Fix an assert.


o  Stefan Metzmacher <metze@samba.org>
   * BUG 11910: s3:smbd: Fix anonymous authentication if signing is mandatory.
   * BUG 11912: libcli/auth: Let msrpc_parse() return talloc'ed empty strings.
   * BUG 11914: s3:ntlm_auth: Make ntlm_auth_generate_session_info() more
     complete.
   * BUG 11927: s3:rpcclient: Make use of SMB_SIGNING_IPC_DEFAULT.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the "Samba 4.1 and newer" product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


----------------------------------------------------------------------


                   ==============================
                   Release Notes for Samba 4.2.12
                            May 02, 2016
                   ==============================


This is the last bugfix release of Samba 4.2. Please note that there will
be security releases only beyond this point!

This release fixes some regressions introduced by the last security fixes.
Please see bug https://bugzilla.samba.org/show_bug.cgi?id=11849 for a list of
bugs addressing these regressions and more information.


Changes since 4.2.11:
---------------------

o  Jeremy Allison <jra@samba.org>
   * BUG 10489: s3: smbd: posix_acls: Fix check for setting u:g:o entry on a
     filesystem with no ACL support.
   * BUG 11703: s3: smbd: Fix timestamp rounding inside SMB2 create.
   * BUG 11742: lib: tevent: Fix memory leak when old signal action restored.
   * BUG 11771: lib: tevent: Fix memory leak when old signal action restored.


o  Christian Ambach <ambi@samba.org>
   * BUG 6482: s3:utils/smbget: Fix recursive download.


o  Andrew Bartlett <abartlet@samba.org>
   * BUG 11780: smbd: Only check dev/inode in open_directory, not the full
     stat().
   * BUG 11789: build: Mark explicit dependencies on pytalloc-util.


o  Ralph Boehme <slow@samba.org>
   * BUG 11714: lib/tsocket: Work around sockets not supporting FIONREAD.


o  Günther Deschner <gd@samba.org>
   * BUG 11789: libsmb/pysmb: add pytalloc-util dependency to fix the build.


o  Berend De Schouwer <berend.de.schouwer@gmail.com>
   * BUG 11643: docs: Add example for domain logins to smbspool man page.


o  Nathan Huff <nhuff@acm.org>
   * BUG 11771: Fix ETIME handling for Solaris event ports.


o  Volker Lendecke <vl@samba.org>
   * BUG 11732: param: Fix str_list_v3 to accept ";" again.
   * BUG 11816: nwrap: Fix the build on Solaris.
   * BUG 11827: Fix memleak.


o  Justin Maggard <jmaggard10@gmail.com>
   * BUG 11773: s3:smbd: Add negprot remote arch detection for OSX.


o  Stefan Metzmacher <metze@samba.org>
   * BUG 11742: tevent: version 0.9.28. Fix memory leak when old signal action
     restored.
   * BUG 11789: s3:wscript: pylibsmb depends on pycredentials.
   * BUG 11841: Fix NT_STATUS_ACCESS_DENIED when accessing Windows public share.
   * BUG 11847: Only validate MIC if "map to guest" is not being used.
   * BUG 11849: auth/ntlmssp: Add ntlmssp_{client,server}:force_old_spnego
     option for testing.
   * BUG 11850: NetAPP SMB servers don't negotiate NTLMSSP_SIGN.
   * BUG 11858: Allow anonymous smb connections.
   * BUG 11870: Fix ads_sasl_spnego_gensec_bind(KRB5).
   * BUG 11872: Fix 'wbinfo -u' and 'net ads search'.


o  Jose A. Rivera <jarrpa@samba.org>
   * BUG 11727: s3:smbd:open: Skip redundant call to file_set_dosmode when
     creating a new file.


o  Andreas Schneider <asn@samba.org>
   * BUG 11690: docs: Add smbspool_krb5_wrapper manpage.


o  Jorge Schrauwen <sjorge@blackdot.be>
   * BUG 11816: configure: Don't check for inotify on illumos.


o  Martin Schwenke <martin@meltin.net>
   * BUG 11719: ctdb-scripts: Drop use of "smbcontrol winbindd ip-dropped ...".


o  Uri Simchoni <uri@samba.org>
   * BUG 11852: libads: Record session expiry for spnego sasl binds.


o  Hemanth Thummala <hemanth.thummala@nutanix.com>
   * BUG 11708: loadparm: Fix memory leak issue.
   * BUG 11740: Real memory leak(buildup) issue in loadparm.


o  Jelmer Vernooij <jelmer@jelmer.uk>
   * BUG 11771: tevent: Only set public headers field when installing as a
     public library.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the "Samba 4.1 and newer" product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


----------------------------------------------------------------------


                   ==============================
                   Release Notes for Samba 4.2.11
                           April 12, 2016
                   ==============================

This is a security release containing one additional
regression fix for the security release 4.2.10.

This fixes a regression that prevents things like 'net ads join'
from working against a Windows 2003 domain.

Changes since 4.2.10:
=====================

o  Stefan Metzmacher <metze@samba.org>
   * Bug 11804 - prerequisite backports for the security release on
     April 12th, 2016


----------------------------------------------------------------------


                   ==============================
                   Release Notes for Samba 4.2.10
                           April 12, 2016
                   ==============================


This is a security release in order to address the following CVEs:

o  CVE-2015-5370 (Multiple errors in DCE-RPC code)

o  CVE-2016-2110 (Man in the middle attacks possible with NTLMSSP)

o  CVE-2016-2111 (NETLOGON Spoofing Vulnerability)

o  CVE-2016-2112 (LDAP client and server don't enforce integrity)

o  CVE-2016-2113 (Missing TLS certificate validation)

o  CVE-2016-2114 ("server signing = mandatory" not enforced)

o  CVE-2016-2115 (SMB IPC traffic is not integrity protected)

o  CVE-2016-2118 (SAMR and LSA man in the middle attacks possible)

The number of changes are rather huge for a security release,
compared to typical security releases.

Given the number of problems and the fact that they are all related
to man in the middle attacks we decided to fix them all at once
instead of splitting them.

In order to prevent the man in the middle attacks it was required
to change the (default) behavior for some protocols. Please see the
"New smb.conf options" and "Behavior changes" sections below.

=======
Details
=======

o  CVE-2015-5370

   Versions of Samba from 3.6.0 to 4.4.0 inclusive are vulnerable to
   denial of service attacks (crashes and high cpu consumption)
   in the DCE-RPC client and server implementations. In addition,
   errors in validation of the DCE-RPC packets can lead to a downgrade
   of a secure connection to an insecure one.

   While we think it is unlikely, there's a nonzero chance for
   a remote code execution attack against the client components,
   which are used by smbd, winbindd and tools like net, rpcclient and
   others. This may gain root access to the attacker.

   The above applies all possible server roles Samba can operate in.

   Note that versions before 3.6.0 had completely different marshalling
   functions for the generic DCE-RPC layer. It's quite possible that
   that code has similar problems!

   The downgrade of a secure connection to an insecure one may
   allow an attacker to take control of Active Directory object
   handles created on a connection created from an Administrator
   account and re-use them on the now non-privileged connection,
   compromising the security of the Samba AD-DC.

o  CVE-2016-2110:

   There are several man in the middle attacks possible with
   NTLMSSP authentication.

   E.g. NTLMSSP_NEGOTIATE_SIGN and NTLMSSP_NEGOTIATE_SEAL
   can be cleared by a man in the middle.

   This was by protocol design in earlier Windows versions.

   Windows Server 2003 RTM and Vista RTM introduced a way
   to protect against the trivial downgrade.

   See MsvAvFlags and flag 0x00000002 in
   https://msdn.microsoft.com/en-us/library/cc236646.aspx

   This new feature also implies support for a mechlistMIC
   when used within SPNEGO, which may prevent downgrades
   from other SPNEGO mechs, e.g. Kerberos, if sign or
   seal is finally negotiated.

   The Samba implementation doesn't enforce the existence of
   required flags, which were requested by the application layer,
   e.g. LDAP or SMB1 encryption (via the unix extensions).
   As a result a man in the middle can take over the connection.
   It is also possible to misguide client and/or
   server to send unencrypted traffic even if encryption
   was explicitly requested.

   LDAP (with NTLMSSP authentication) is used as a client
   by various admin tools of the Samba project,
   e.g. "net", "samba-tool", "ldbsearch", "ldbedit", ...

   As an active directory member server LDAP is also used
   by the winbindd service when connecting to domain controllers.

   Samba also offers an LDAP server when running as
   active directory domain controller.

   The NTLMSSP authentication used by the SMB1 encryption
   is protected by smb signing, see CVE-2015-5296.

o  CVE-2016-2111:

   It's basically the same as CVE-2015-0005 for Windows:

     The NETLOGON service in Microsoft Windows Server 2003 SP2,
     Windows Server 2008 SP2 and R2 SP1, and Windows Server 2012 Gold
     and R2, when a Domain Controller is configured, allows remote
     attackers to spoof the computer name of a secure channel's
     endpoint, and obtain sensitive session information, by running a
     crafted application and leveraging the ability to sniff network
     traffic, aka "NETLOGON Spoofing Vulnerability".

   The vulnerability in Samba is worse as it doesn't require
   credentials of a computer account in the domain.

   This only applies to Samba running as classic primary domain controller,
   classic backup domain controller or active directory domain controller.

   The security patches introduce a new option called "raw NTLMv2 auth"
   ("yes" or "no") for the [global] section in smb.conf.
   Samba (the smbd process) will reject client using raw NTLMv2
   without using NTLMSSP.

   Note that this option also applies to Samba running as
   standalone server and member server.

   You should also consider using "lanman auth = no" (which is already the default)
   and "ntlm auth = no". Have a look at the smb.conf manpage for further details,
   as they might impact compatibility with older clients. These also
   apply for all server roles.

o  CVE-2016-2112:

   Samba uses various LDAP client libraries, a builtin one and/or the system
   ldap libraries (typically openldap).

   As active directory domain controller Samba also provides an LDAP server.

   Samba takes care of doing SASL (GSS-SPNEGO) authentication with Kerberos or NTLMSSP
   for LDAP connections, including possible integrity (sign) and privacy (seal)
   protection.

   Samba has support for an option called "client ldap sasl wrapping" since version
   3.2.0. Its default value has changed from "plain" to "sign" with version 4.2.0.

   Tools using the builtin LDAP client library do not obey the
   "client ldap sasl wrapping" option. This applies to tools like:
   "samba-tool", "ldbsearch", "ldbedit" and more. Some of them have command line
   options like "--sign" and "--encrypt". With the security update they will
   also obey the "client ldap sasl wrapping" option as default.

   In all cases, even if explicitly request via "client ldap sasl wrapping",
   "--sign" or "--encrypt", the protection can be downgraded by a man in the
   middle.

   The LDAP server doesn't have an option to enforce strong authentication
   yet. The security patches will introduce a new option called
   "ldap server require strong auth", possible values are "no",
   "allow_sasl_over_tls" and "yes".

   As the default behavior was as "no" before, you may
   have to explicitly change this option until all clients have
   been adjusted to handle LDAP_STRONG_AUTH_REQUIRED errors.
   Windows clients and Samba member servers already use
   integrity protection.

o  CVE-2016-2113:

   Samba has support for TLS/SSL for some protocols:
   ldap and http, but currently certificates are not
   validated at all. While we have a "tls cafile" option,
   the configured certificate is not used to validate
   the server certificate.

   This applies to ldaps:// connections triggered by tools like:
   "ldbsearch", "ldbedit" and more. Note that it only applies
   to the ldb tools when they are built as part of Samba or with Samba
   extensions installed, which means the Samba builtin LDAP client library is
   used.

   It also applies to dcerpc client connections using ncacn_http (with https://),
   which are only used by the openchange project. Support for ncacn_http
   was introduced in version 4.2.0.

   The security patches will introduce a new option called
   "tls verify peer". Possible values are "no_check", "ca_only",
   "ca_and_name_if_available", "ca_and_name" and "as_strict_as_possible".

   If you use the self-signed certificates which are auto-generated
   by Samba, you won't have a crl file and need to explicitly
   set "tls verify peer = ca_and_name".

o  CVE-2016-2114

   Due to a regression introduced in Samba 4.0.0,
   an explicit "server signing = mandatory" in the [global] section
   of the smb.conf was not enforced for clients using the SMB1 protocol.

   As a result it does not enforce smb signing and allows man in the middle attacks.

   This problem applies to all possible server roles:
   standalone server, member server, classic primary domain controller,
   classic backup domain controller and active directory domain controller.

   In addition, when Samba is configured with "server role = active directory domain controller"
   the effective default for the "server signing" option should be "mandatory".

   During the early development of Samba 4 we had a new experimental
   file server located under source4/smb_server. But before
   the final 4.0.0 release we switched back to the file server
   under source3/smbd.

   But the logic for the correct default of "server signing" was not
   ported correctly ported.

   Note that the default for server roles other than active directory domain
   controller, is "off" because of performance reasons.

o  CVE-2016-2115:

   Samba has an option called "client signing", this is turned off by default
   for performance reasons on file transfers.

   This option is also used when using DCERPC with ncacn_np.

   In order to get integrity protection for ipc related communication
   by default the "client ipc signing" option is introduced.
   The effective default for this new option is "mandatory".

   In order to be compatible with more SMB server implementations,
   the following additional options are introduced:
   "client ipc min protocol" ("NT1" by default) and
   "client ipc max protocol" (the highest support SMB2/3 dialect by default).
   These options overwrite the "client min protocol" and "client max protocol"
   options, because the default for "client max protocol" is still "NT1".
   The reason for this is the fact that all SMB2/3 support SMB signing,
   while there are still SMB1 implementations which don't offer SMB signing
   by default (this includes Samba versions before 4.0.0).

   Note that winbindd (in versions 4.2.0 and higher) enforces SMB signing
   against active directory domain controllers despite of the
   "client signing" and "client ipc signing" options.

o  CVE-2016-2118 (a.k.a. BADLOCK):

   The Security Account Manager Remote Protocol [MS-SAMR] and the
   Local Security Authority (Domain Policy) Remote Protocol [MS-LSAD]
   are both vulnerable to man in the middle attacks. Both are application level
   protocols based on the generic DCE 1.1 Remote Procedure Call (DCERPC) protocol.

   These protocols are typically available on all Windows installations
   as well as every Samba server. They are used to maintain
   the Security Account Manager Database. This applies to all
   roles, e.g. standalone, domain member, domain controller.

   Any authenticated DCERPC connection a client initiates against a server
   can be used by a man in the middle to impersonate the authenticated user
   against the SAMR or LSAD service on the server.

   The client chosen application protocol, auth type (e.g. Kerberos or NTLMSSP)
   and auth level (NONE, CONNECT, PKT_INTEGRITY, PKT_PRIVACY) do not matter
   in this case. A man in the middle can change auth level to CONNECT
   (which means authentication without message protection) and take over
   the connection.

   As a result, a man in the middle is able to get read/write access to the
   Security Account Manager Database, which reveals all passwords
   and any other potential sensitive information.

   Samba running as an active directory domain controller is additionally
   missing checks to enforce PKT_PRIVACY for the
   Directory Replication Service Remote Protocol [MS-DRSR] (drsuapi)
   and the BackupKey Remote Protocol [MS-BKRP] (backupkey).
   The Domain Name Service Server Management Protocol [MS-DNSP] (dnsserver)
   is not enforcing at least PKT_INTEGRITY.

====================
New smb.conf options
====================

  allow dcerpc auth level connect (G)

    This option controls whether DCERPC services are allowed to be used with
    DCERPC_AUTH_LEVEL_CONNECT, which provides authentication, but no per
    message integrity nor privacy protection.

    Some interfaces like samr, lsarpc and netlogon have a hard-coded default
    of no and epmapper, mgmt and rpcecho have a hard-coded default of yes.

    The behavior can be overwritten per interface name (e.g. lsarpc,
    netlogon, samr, srvsvc, winreg, wkssvc ...) by using
    'allow dcerpc auth level connect:interface = yes' as option.

    This option yields precedence to the implementation specific restrictions.
    E.g. the drsuapi and backupkey protocols require DCERPC_AUTH_LEVEL_PRIVACY.
    The dnsserver protocol requires DCERPC_AUTH_LEVEL_INTEGRITY.

    Default: allow dcerpc auth level connect = no

    Example: allow dcerpc auth level connect = yes

  client ipc signing (G)

    This controls whether the client is allowed or required to use
    SMB signing for IPC$ connections as DCERPC transport. Possible
    values are auto, mandatory and disabled.

    When set to mandatory or default, SMB signing is required.

    When set to auto, SMB signing is offered, but not enforced and
    if set to disabled, SMB signing is not offered either.

    Connections from winbindd to Active Directory Domain Controllers
    always enforce signing.

    Default: client ipc signing = default

  client ipc max protocol (G)

    The value of the parameter (a string) is the highest protocol level that will
    be supported for IPC$ connections as DCERPC transport.

    Normally this option should not be set as the automatic negotiation phase
    in the SMB protocol takes care of choosing the appropriate protocol.

    The value default refers to the latest supported protocol, currently SMB3_11.

    See client max protocol for a full list of available protocols.
    The values CORE, COREPLUS, LANMAN1, LANMAN2 are silently upgraded to NT1.

    Default: client ipc max protocol = default

    Example: client ipc max protocol = SMB2_10

  client ipc min protocol (G)

    This setting controls the minimum protocol version that the will be
    attempted to use for IPC$ connections as DCERPC transport.

    Normally this option should not be set as the automatic negotiation phase
    in the SMB protocol takes care of choosing the appropriate protocol.

    The value default refers to the higher value of NT1 and the
    effective value of "client min protocol".

    See client max protocol for a full list of available protocols.
    The values CORE, COREPLUS, LANMAN1, LANMAN2 are silently upgraded to NT1.

    Default: client ipc min protocol = default

    Example: client ipc min protocol = SMB3_11

  ldap server require strong auth (G)

    The ldap server require strong auth defines whether the
    ldap server requires ldap traffic to be signed or
    signed and encrypted (sealed). Possible values are no,
    allow_sasl_over_tls and yes.

    A value of no allows simple and sasl binds over all transports.

    A value of allow_sasl_over_tls allows simple and sasl binds (without sign or seal)
    over TLS encrypted connections. Unencrypted connections only
    allow sasl binds with sign or seal.

    A value of yes allows only simple binds over TLS encrypted connections.
    Unencrypted connections only allow sasl binds with sign or seal.

    Default: ldap server require strong auth = yes

  raw NTLMv2 auth (G)

    This parameter determines whether or not smbd(8) will allow SMB1 clients
    without extended security (without SPNEGO) to use NTLMv2 authentication.

    If this option, lanman auth and ntlm auth are all disabled, then only
    clients with SPNEGO support will be permitted. That means NTLMv2 is only
    supported within NTLMSSP.

    Default: raw NTLMv2 auth = no

  tls verify peer (G)

    This controls if and how strict the client will verify the peer's
    certificate and name. Possible values are (in increasing order): no_check,
    ca_only, ca_and_name_if_available, ca_and_name and as_strict_as_possible.

    When set to no_check the certificate is not verified at all,
    which allows trivial man in the middle attacks.

    When set to ca_only the certificate is verified to be signed from a ca
    specified in the "tls ca file" option. Setting "tls ca file" to a valid file
    is required. The certificate lifetime is also verified. If the "tls crl file"
    option is configured, the certificate is also verified against
    the ca crl.

    When set to ca_and_name_if_available all checks from ca_only are performed.
    In addition, the peer hostname is verified against the certificate's
    name, if it is provided by the application layer and not given as
    an ip address string.

    When set to ca_and_name all checks from ca_and_name_if_available are performed.
    In addition the peer hostname needs to be provided and even an ip
    address is checked against the certificate's name.

    When set to as_strict_as_possible all checks from ca_and_name are performed.
    In addition the "tls crl file" needs to be configured. Future versions
    of Samba may implement additional checks.

    Default: tls verify peer = as_strict_as_possible

  tls priority (G) (backported from Samba 4.3 to Samba 4.2)

    This option can be set to a string describing the TLS protocols to be
    supported in the parts of Samba that use GnuTLS, specifically the AD DC.

    The default turns off SSLv3, as this protocol is no longer considered
    secure after CVE-2014-3566 (otherwise known as POODLE) impacted SSLv3 use
    in HTTPS applications.

    The valid options are described in the GNUTLS Priority-Strings
    documentation at http://gnutls.org/manual/html_node/Priority-Strings.html

    Default: tls priority = NORMAL:-VERS-SSL3.0

================
Behavior changes
================

o  The default auth level for authenticated binds has changed from
   DCERPC_AUTH_LEVEL_CONNECT to DCERPC_AUTH_LEVEL_INTEGRITY.
   That means ncacn_ip_tcp:server is now implicitly the same
   as ncacn_ip_tcp:server[sign] and offers a similar protection
   as ncacn_np:server, which relies on smb signing.

o  The following constraints are applied to SMB1 connections:

   - "client lanman auth = yes" is now consistently
     required for authenticated connections using the
     SMB1 LANMAN2 dialect.
   - "client ntlmv2 auth = yes" and "client use spnego = yes"
     (both the default values), require extended security (SPNEGO)
     support from the server. That means NTLMv2 is only used within
     NTLMSSP.

o  Tools like "samba-tool", "ldbsearch", "ldbedit" and more obey the
   default of "client ldap sasl wrapping = sign". Even with
   "client ldap sasl wrapping = plain" they will automatically upgrade
   to "sign" when getting LDAP_STRONG_AUTH_REQUIRED from the LDAP
   server.

Changes since 4.2.9:
====================

o  Jeremy Allison <jra@samba.org>
   * Bug 11344 - CVE-2015-5370: Multiple errors in DCE-RPC code.

   * Bug 11804 - prerequisite backports for the security release on
     April 12th, 2016.

o  Christian Ambach <ambi@samba.org>
   * Bug 11804 - prerequisite backports for the security release on
     April 12th, 2016.

o  Andrew Bartlett <abartlet@samba.org>
   * Bug 11804 - prerequisite backports for the security release on
     April 12th, 2016.

o  Ralph Boehme <slow@samba.org>
   * Bug 11644 - CVE-2016-2112: The LDAP client and server don't enforce
     integrity protection.

o  Günther Deschner <gd@samba.org>
   * Bug 11749 - CVE-2016-2111: NETLOGON Spoofing Vulnerability.

   * Bug 11804 - prerequisite backports for the security release on
     April 12th, 2016.

o  Björn Jacke <bj@sernet.de>
   * Bug 11804 - prerequisite backports for the security release on
     April 12th, 2016.

o  Volker Lendecke <vl@samba.org>
   * Bug 11804 - prerequisite backports for the security release on
     April 12th, 2016.

o  Kamen Mazdrashki <kamenim@samba.org>
   * Bug 11804 - prerequisite backports for the security release on
     April 12th, 2016.

o  Stefan Metzmacher <metze@samba.org>
   * Bug 11344 - CVE-2015-5370: Multiple errors in DCE-RPC code.

   * Bug 11616 - CVE-2016-2118: SAMR and LSA man in the middle attacks possible.

   * Bug 11644 - CVE-2016-2112: The LDAP client and server doesn't enforce
     integrity protection.

   * Bug 11687 - CVE-2016-2114: "server signing = mandatory" not enforced.

   * Bug 11688 - CVE-2016-2110: Man in the middle attacks possible with NTLMSSP.

   * Bug 11749 - CVE-2016-2111: NETLOGON Spoofing Vulnerability.

   * Bug 11752 - CVE-2016-2113: Missing TLS certificate validation allows man in
     the middle attacks.

   * Bug 11756 - CVE-2016-2115: SMB client connections for IPC traffic are not
     integrity protected.

   * Bug 11804 - prerequisite backports for the security release on
     April 12th, 2016.

o  Richard Sharpe <rsharpe@samba.org>
   * Bug 11804 - prerequisite backports for the security release on
     April 12th, 2016.

o  Andreas Schneider <asn@samba.org>
   * Bug 11804 - prerequisite backports for the security release on
     April 12th, 2016.

o  Jelmer Vernooij <jelmer@samba.org>
   * Bug 11804 - prerequisite backports for the security release on
     April 12th, 2016.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the "Samba 4.1 and newer" product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================

                   =============================
                   Release Notes for Samba 4.2.9
                           March 8, 2016
                   =============================


This is a security release in order to address the following CVEs:

o  CVE-2015-7560 (Incorrect ACL get/set allowed on symlink path)
o  CVE-2016-0771 (Out-of-bounds read in internal DNS server)

=======
Details
=======

o  CVE-2015-7560:
   All versions of Samba from 3.2.0 to 4.4.0rc3 inclusive are vulnerable to
   a malicious client overwriting the ownership of ACLs using symlinks.

   An authenticated malicious client can use SMB1 UNIX extensions to
   create a symlink to a file or directory, and then use non-UNIX SMB1
   calls to overwrite the contents of the ACL on the file or directory
   linked to.

o  CVE-2016-0771:
   All versions of Samba from 4.0.0 to 4.4.0rc3 inclusive, when deployed as
   an AD DC and choose to run the internal DNS server, are vulnerable to an
   out-of-bounds read issue during DNS TXT record handling caused by users
   with permission to modify DNS records.

   A malicious client can upload a specially constructed DNS TXT record,
   resulting in a remote denial-of-service attack. As long as the affected
   TXT record remains undisturbed in the Samba database, a targeted DNS
   query may continue to trigger this exploit.

   While unlikely, the out-of-bounds read may bypass safety checks and
   allow leakage of memory from the server in the form of a DNS TXT reply.

   By default only authenticated accounts can upload DNS records,
   as "allow dns updates = secure only" is the default.
   Any other value would allow anonymous clients to trigger this
   bug, which is a much higher risk.


Changes since 4.2.8:
--------------------

o  Jeremy Allison <jra@samba.org>
   * BUG 11648: CVE-2015-7560: Getting and setting Windows ACLs on symlinks can
     change permissions on link target.

o  Garming Sam <garming@catalyst.net.nz>
   * BUGs 11128, 11686: CVE-2016-0771: Read of uninitialized memory DNS TXT
     handling.

o  Stefan Metzmacher <metze@samba.org>
   * BUGs 11128, 11686: CVE-2016-0771: Read of uninitialized memory DNS TXT
     handling.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the "Samba 4.1 and newer" product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


----------------------------------------------------------------------


                   =============================
                   Release Notes for Samba 4.2.8
                          February 2, 2016
                   =============================


This is the latest stable release of Samba 4.2.


Changes since 4.2.7:
--------------------

o  Michael Adam <obnox@samba.org>
   * BUG 11647: s3:smbd: Fix a corner case of the symlink verification.


o  Jeremy Allison <jra@samba.org>
   * BUG 11624: s3: libsmb: Correctly initialize the list head when keeping a
     list of primary followed by DFS connections.
   * BUG 11625: Reduce the memory footprint of empty string options.


o  Christian Ambach <ambi@samba.org>
   * BUG 11400: s3:smbd/oplock: Obey kernel oplock setting when releasing
     oplocks.


o  Ralph Boehme <slow@samba.org>
   * BUG 11065: vfs_fruit: Fix renaming directories with open files.
   * BUG 11347: Fix MacOS finder error 36 when copying folder to Samba.
   * BUG 11466: Fix copying files with vfs_fruit when using vfs_streams_xattr
     without stream prefix and type suffix.
   * BUG 11645: smbd: make "hide dot files" option work with "store dos
     attributes = yes".
   * BUG 11684: s3:smbd: Ignore initial allocation size for directory creation.


o  Günther Deschner <gd@samba.org>
   * BUG 11639: lib/async_req: Do not install async_connect_send_test.


o  Karolin Seeger <kseeger@samba.org>
   * BUG 11641: docs: Fix typos in man vfs_gpfs.


o  Uri Simchoni <uri@samba.org>
   * BUG 11682: smbcacls: Fix uninitialized variable.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the "Samba 4.1 and newer" product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


----------------------------------------------------------------------


                   =============================
                   Release Notes for Samba 4.2.7
                         December 16, 2015
                   =============================


This is a security release in order to address the following CVEs:

o  CVE-2015-3223 (Denial of service in Samba Active Directory
                  server)
o  CVE-2015-5252 (Insufficient symlink verification in smbd)
o  CVE-2015-5299 (Missing access control check in shadow copy
                  code)
o  CVE-2015-5296 (Samba client requesting encryption vulnerable
                  to downgrade attack)
o  CVE-2015-8467 (Denial of service attack against Windows
                  Active Directory server)
o  CVE-2015-5330 (Remote memory read in Samba LDAP server)

Please note that if building against a system libldb, the required
version has been bumped to ldb-1.1.24.  This is needed to ensure
we build against a system ldb library that contains the fixes
for CVE-2015-5330 and CVE-2015-3223.

=======
Details
=======

o  CVE-2015-3223:
   All versions of Samba from 4.0.0 to 4.3.2 inclusive (resp. all
   ldb versions up to 1.1.23 inclusive) are vulnerable to
   a denial of service attack in the samba daemon LDAP server.

   A malicious client can send packets that cause the LDAP server in the
   samba daemon process to become unresponsive, preventing the server
   from servicing any other requests.

   This flaw is not exploitable beyond causing the code to loop expending
   CPU resources.

o  CVE-2015-5252:
   All versions of Samba from 3.0.0 to 4.3.2 inclusive are vulnerable to
   a bug in symlink verification, which under certain circumstances could
   allow client access to files outside the exported share path.

   If a Samba share is configured with a path that shares a common path
   prefix with another directory on the file system, the smbd daemon may
   allow the client to follow a symlink pointing to a file or directory
   in that other directory, even if the share parameter "wide links" is
   set to "no" (the default).

o  CVE-2015-5299:
   All versions of Samba from 3.2.0 to 4.3.2 inclusive are vulnerable to
   a missing access control check in the vfs_shadow_copy2 module. When
   looking for the shadow copy directory under the share path the current
   accessing user should have DIRECTORY_LIST access rights in order to
   view the current snapshots.

   This was not being checked in the affected versions of Samba.

o  CVE-2015-5296:
   Versions of Samba from 3.2.0 to 4.3.2 inclusive do not ensure that
   signing is negotiated when creating an encrypted client connection to
   a server.

   Without this a man-in-the-middle attack could downgrade the connection
   and connect using the supplied credentials as an unsigned, unencrypted
   connection.

o  CVE-2015-8467:
   Samba, operating as an AD DC, is sometimes operated in a domain with a
   mix of Samba and Windows Active Directory Domain Controllers.

   All versions of Samba from 4.0.0 to 4.3.2 inclusive, when deployed as
   an AD DC in the same domain with Windows DCs, could be used to
   override the protection against the MS15-096 / CVE-2015-2535 security
   issue in Windows.

   Prior to MS16-096 it was possible to bypass the quota of machine
   accounts a non-administrative user could create.  Pure Samba domains
   are not impacted, as Samba does not implement the
   SeMachineAccountPrivilege functionality to allow non-administrator
   users to create new computer objects.

o  CVE-2015-5330:
   All versions of Samba from 4.0.0 to 4.3.2 inclusive (resp. all
   ldb versions up to 1.1.23 inclusive) are vulnerable to
   a remote memory read attack in the samba daemon LDAP server.

   A malicious client can send packets that cause the LDAP server in the
   samba daemon process to return heap memory beyond the length of the
   requested value.

   This memory may contain data that the client should not be allowed to
   see, allowing compromise of the server.

   The memory may either be returned to the client in an error string, or
   stored in the database by a suitabily privileged user.  If untrusted
   users can create objects in your database, please confirm that all DN
   and name attributes are reasonable.


Changes since 4.2.6:
--------------------

o  Andrew Bartlett <abartlet@samba.org>
   * BUG 11552: CVE-2015-8467: samdb: Match MS15-096 behaviour for
     userAccountControl.

o  Jeremy Allison <jra@samba.org>
   * BUG 11325: CVE-2015-3223: Fix LDAP \00 search expression attack DoS.
   * BUG 11395: CVE-2015-5252: Fix insufficient symlink verification (file
     access outside the share).
   * BUG 11529: CVE-2015-5299: s3-shadow-copy2: Fix missing access check on
     snapdir.

o  Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
   * BUG 11599: CVE-2015-5330: Fix remote read memory exploit in LDB.

o  Stefan Metzmacher <metze@samba.org>
   * BUG 11536: CVE-2015-5296: Add man in the middle protection when forcing
     smb encryption on the client side.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the "Samba 4.1 and newer" product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


----------------------------------------------------------------------


                   =============================
                   Release Notes for Samba 4.2.6
                         December 08, 2015
                   =============================


This is the latest stable release of Samba 4.2.


Changes since 4.2.5:
--------------------

o   Michael Adam <obnox@samba.org>
    * BUG 11365: ctdb: Strip trailing spaces from nodes file.
    * BUG 11577: ctdb: Open the RO tracking db with perms 0600 instead of 0000.
    * BUG 11619: doc: Fix a typo in the smb.conf manpage.


o   Jeremy Allison <jra@samba.org>
    * BUG 11452: s3-smbd: Fix old DOS client doing wildcard delete - gives a
      attribute type of zero.
    * BUG 11565: auth: gensec: Fix a memory leak.
    * BUG 11566: lib: util: Make non-critical message a warning.
    * BUG 11589: s3: smbd: If EA's are turned off on a share don't allow an SMB2
      create containing them.
    * BUG 11615: s3: smbd: have_file_open_below() fails to enumerate open files
      below an open directory handle.


o   Ralph Boehme <slow@samba.org>
    * BUG 11564: async_req: Fix non-blocking connect().


o   Volker Lendecke <vl@samba.org>
    * BUG 11243: vfs_gpfs: Re-enable share modes.
    * BUG 11570: smbd: Send SMB2 oplock breaks unencrypted.


o   YvanM <yvan.masson@openmailbox.org>
    * BUG 11584: manpage: Correct small typo error.


o   Marc Muehlfeld <mmuehlfeld@samba.org>
    * BUG 9912: Changing log level of two entries to from 1 to 3.


o   Andreas Schneider <asn@samba.org>
    * BUG 11346: wafsamba: Also build libraries with RELRO protection.
    * BUG 11563: nss_wins: Do not run into use after free issues when we access
      memory allocated on the globals and the global being reinitialized.


o   Karolin Seeger <kseeger@samba.org>
    * BUG 11619: docs: Fix some typos in the idmap config section of man 5
      smb.conf.


o   Noel Power <noel.power@suse.com>
    * BUG 11569: Fix winbindd crashes with samlogon for trusted domain user.
    * BUG 11597: Backport some valgrind fixes from upstream master.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the Samba 4.2 product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


----------------------------------------------------------------------


                   =============================
                   Release Notes for Samba 4.2.5
                         October 27, 2015
                   =============================


This is the latest stable release of Samba 4.2.


Changes since 4.2.4:
--------------------

o   Jeremy Allison <jra@samba.org>
    * BUG 10252: s3: smbd: Fix our access-based enumeration on "hide unreadable"
      to match Windows.
    * BUG 10634: smbd: Fix file name buflen and padding in notify repsonse.
    * BUG 11486: s3: smbd: Fix mkdir race condition.
    * BUG 11522: s3: smbd: Fix opening/creating :stream files on the root share
      directory.
    * BUG 11535: s3: smbd: Fix NULL pointer bug introduced by previous 'raw'
      stream fix (bug #11522).
    * BUG 11555: s3: lsa: lookup_name() logic for unqualified (no DOMAIN\
      component) names is incorrect.


o   Ralph Boehme <slow@samba.org>
    * BUG 11535: s3: smbd: Fix a crash in unix_convert().
    * BUG 11543: vfs_fruit: Return value of ad_pack in vfs_fruit.c.
    * BUG 11549: Fix bug in smbstatus where the lease info is not printed.
    * BUG 11550: s3:smbstatus: Add stream name to share_entry_forall().
    * BUG 11555: s3:lib: validate domain name in lookup_wellknown_name().


o   Günther Deschner <gd@samba.org>
    * BUG 11038: kerberos: Make sure we only use prompter type when available.


o   Björn Jacke <bj@sernet.de>
    * BUG 10365: nss_winbind: Fix hang on Solaris on big groups.
    * BUG 11355: build: Use as-needed linker flag also on OpenBSD.


o   Volker Lendecke <vl@samba.org>
    * BUG 11038: winbind: Fix 100% loop.
    * BUG 11381: Fix a deadlock in tdb.


o   Stefan Metzmacher <metze@samba.org>
    * BUG 11316: s3:ctdbd_conn: Make sure we destroy tevent_fd before closing
      the socket.
    * BUG 11327: dcerpc.idl: accept invalid dcerpc_bind_nak pdus.


o   Har Gagan Sahai <SHarGagan@novell.com>
    * BUG 11509: s3: dfs: Fix a crash when the dfs targets are disabled.


o   Andreas Schneider <asn@samba.org>
    * BUG 11502: pam_winbind: Fix a segfault if initialization fails.


o   Uri Simchoni <uri@samba.org>
    * BUG 11528: net: Fix a crash with 'net ads keytab create'.
    * BUG 11547: vfs_commit: Set the fd on open before calling SMB_VFS_FSTAT.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the Samba 4.2 product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


----------------------------------------------------------------------


                   =============================
                   Release Notes for Samba 4.2.4
                         September 8, 2015
                   =============================


This is the latest stable release of Samba 4.2.


Changes since 4.2.3:
--------------------

o   Michael Adam <obnox@samba.org>
    * BUG 11372: smbd: Fix SMB3 functionality of "smb encrypt".


o   Jeremy Allison <jra@samba.org>
    * BUG 11359: lib: replace: Add strsep function (missing on Solaris).


o   Ralph Boehme <slow@samba.org>
    * BUG 11278: Fix stream names with colon with "fruit:encoding = native".
    * BUG 11317: vfs:fruit: Implement copyfile style copy_chunk.
    * BUG 11426: s3-net: Use talloc array in share allowedusers.
    * BUG 11467: vfs_fruit: Handling of empty resource fork.


o   Alexander Bokovoy <ab@samba.org>
    * BUG 11265: auth/credentials: If credentials have principal set, they are
      not anonymous anymore.


o   Günther Deschner <gd@samba.org>
    * BUG 11373: s3-smbd: Reset protocol in smbXsrv_connection_init_tables
      failure paths.


o   Amitay Isaacs <amitay@gmail.com>
    * BUG 11398: ctdb-daemon: Return correct sequence number for
      CONTROL_GET_DB_SEQNUM.
    * BUG 11431: ctdb-daemon: Improve error handling for running event scripts.


o   Volker Lendecke <vl@samba.org>
    * BUG 11316: lib: Fix rundown of open_socket_out().
    * BUG 11488: Avoid quoting problems in user's DNs.


o   Justin Maggard <jmaggard@netgear.com>
    * BUG 11320: s3-passdb: Respect LOOKUP_NAME_GROUP flag in sid lookup.


o   Roel van Meer <roel@1afa.com>
    * BUG 11427: s3-util: Compare the maximum allowed length of a NetBIOS name.


o   Stefan Metzmacher <metze@samba.org>
    * BUG 11316: s3:lib: Fix some corner cases of open_socket_out_cleanup().
    * BUG 11454: Backport dcesrv_netr_DsRGetDCNameEx2 fixes.


o   Anubhav Rakshit <anubhav.rakshit@gmail.com>
    * BUG 11361: s3:libsmb: Fix a bug in conversion of ea list to ea array.


o   Arvid Requate <requate@univention.de>
    * BUG 11291: s4:rpc_server/netlogon: Fix for NetApp.


o   Andreas Schneider <asn@samba.org>
    * BUG 9862: s3-auth: Fix "map to guest = Bad uid".
    * BUG 11403: s3-smbd: Leave sys_disk_free() if dfree command is used.
    * BUG 11404: s3-auth: Fix a possible null pointer dereference.


o   Martin Schwenke <martin@meltin.net>
    * BUG 11399: ctdb-scripts: Support monitoring of interestingly named VLANs
      on bonds.
    * BUG 11432: ctdb-daemon: Check if updates are in flight when releasing all
      IPs.
    * BUG 11435: ctdb-build: Fix building of PCP PMDA module.


o   Wei Zhong <wweyeww@gmail.com>
    * BUG 10823: s3: winbindd: Fix TALLOC_FREE of uninitialized groups variable.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the Samba 4.2 product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


----------------------------------------------------------------------


                   =============================
                   Release Notes for Samba 4.2.3
                           July 14, 2015
                   =============================


This is the latest stable release of Samba 4.2.


Changes since 4.2.2:
--------------------

o   Michael Adam <obnox@samba.org>
    * BUG 11366: docs: Overhaul the description of "smb encrypt" to include SMB3
      encryption.


o   Jeremy Allison <jra@samba.org>
    * BUG 11068: s3: lib: util: Ensure we read a hex number as %x, not %u.
    * BUG 11295: Excessive cli_resolve_path() usage can slow down transmission.
    * BUG 11328: winbindd: winbindd_raw_kerberos_login - ensure logon_info
      exists in PAC.
    * BUG 11339: s3: smbd: Use separate flag to track
      become_root()/unbecome_root() state.
    * BUG 11342: s3: smbd: Codenomicon crash in do_smb_load_module().


o   Christian Ambach <ambi@samba.org>
    * BUG 11170: s3:param/loadparm: Fix 'testparm --show-all-parameters'.


o   Andrew Bartlett <abartlet@samba.org>
    * BUG 10991: winbindd: Sync secrets.ldb into secrets.tdb on startup.


o   Ralph Boehme <slow@samba.org>
    * BUG 11277: s3:smb2: Add padding to last command in compound requests.
    * BUG 11305: vfs_fruit: Add option "veto_appledouble".
    * BUG 11323: smbd/trans2: Add a useful diagnostic for files with bad
      encoding.
    * BUG 11363: vfs_fruit: Check offset and length for AFP_AfpInfo read
      requests.
    * BUG 11371: ncacn_http: Fix GNUism.


o   Günther Deschner <gd@samba.org>
    * BUG 11245: s3-rpc_server: Fix rpc_create_tcpip_sockets() processing of
      interfaces.


o   Alexander Drozdov <al.drozdov@gmail.com>
    * BUG 11331: tdb: version 1.3.5: ABI change: tdb_chainlock_read_nonblock()
      has been added.


o   Evangelos Foutras <evangelos@foutrelis.com>
    * BUG 8780: s4:lib/tls: Fix build with gnutls 3.4.


o   David Holder <david.holder@erion.co.uk>
    * BUG 11281: Add IPv6 support to ADS client side LDAP connects.
    * BUG 11282: Add IPv6 support for determining FQDN during ADS join.
    * BUG 11283: s3: IPv6 enabled DNS connections for ADS client.


o   Steve Howells <steve.howells@moscowfirst.com>
    * BUG 10924: s4.2/fsmo.py: Fixed fsmo transfer exception.


o   Amitay Isaacs <amitay@gmail.com>
    * BUG 11293: Fix invalid write in ctdb_lock_context_destructor.


o   Volker Lendecke <vl@samba.org>
    * BUG 11218: smbd: Fix a use-after-free.
    * BUG 11312: tstream: Make socketpair nonblocking.
    * BUG 11330: tevent: Fix CID 1035381 Unchecked return value.
    * BUG 11331: tdb: Fix CID 1034842 and 1034841 Resource leaks.


o   Stefan Metzmacher <metze@samba.org>
    * BUG 11061: Logon via MS Remote Desktop hangs.
    * BUG 11141: tevent: Add a note to tevent_add_fd().
    * BUG 11293: Fix invalid write in ctdb_lock_context_destructor.
    * BUG 11316: tevent_fd needs to be destroyed before closing the fd.
    * BUG 11319: Build fails on Solaris 11 with "‘PTHREAD_MUTEX_ROBUST’
      undeclared".
    * BUG 11326: Robust mutex support broken in 1.3.5.
    * BUG 11329: s3:smb2_setinfo: Fix memory leak in the defer_rename case.
    * BUG 11330: Backport tevent-0.9.25.
    * BUG 11331: Backport tdb-1.3.6.
    * BUG 11367: s3:auth_domain: Fix talloc problem in
      connect_to_domain_password_server().


o   Marc Muehlfeld <mmuehlfeld@samba.org>
    * BUG 11315: Group creation: Add msSFU30Name only when --nis-domain was
      given.

o   Matthieu Patou <mat@matws.net>
    * BUG 11356: pidl: Make the compilation of PIDL producing the same results
      if the content hasn't change.


o   Noel Power <noel.power@suse.com>
    * BUG 11328: Kerberos auth info3 should contain resource group ids available
      from pac_logon.


o   Gordon Ross <gordon.w.ross@gmail.com>
    * BUG 11330: lib: tevent: Fix compile error in Solaris ports backend.


o   Christof Schmitt <cs@samba.org>
    * BUG 11313: idmap_rfc2307: Fix wbinfo '--gid-to-sid' query.
    * BUG 11324: Change sharesec output back to previous format.


o   Uri Simchoni <urisimchoni@gmail.com>
    * BUG 11358: winbindd: Disconnect child process if request is cancelled at
      main process.


o   Petr Viktorin <pviktori@redhat.com>
    * BUG 11330: Backport tevent-0.9.25.


o   Youzhong Yang <yyang@mathworks.com>
    * BUG 11217: s3-unix_msg: Remove socket file after closing socket fd.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the Samba 4.2 product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


----------------------------------------------------------------------


                   =============================
                   Release Notes for Samba 4.2.2
                           May 27, 2015
                   =============================


This is the latest stable release of Samba 4.2.


Changes since 4.2.1:
--------------------

o   Michael Adam <obnox@samba.org>
    * BUG 11182: s3:smbXsrv: refactor duplicate code into
      smbXsrv_session_clear_and_logoff().
    * BUG 11260: gencache: don't fail gencache_stabilize if there were records
      to delete.


o   Jeremy Allison <jra@samba.org>
    * BUG 11186: s3: libsmbclient: After getting attribute server, ensure main
      srv pointer is still valid.
    * BUG 11236: s4: rpc: Refactor dcesrv_alter() function into setup and send
      steps.
    * BUG 11240: s3: smbd: Incorrect file size returned in the response of
      "FILE_SUPERSEDE Create".
    * BUG 11249: Mangled names do not work with acl_xattr.
    * BUG 11254: nmbd rewrites browse.dat when not required.


o   Ralph Boehme <slow@samba.org>
    * BUG 11213: vfs_fruit: add option "nfs_aces" that controls the NFS ACEs
      stuff.
    * BUG 11224: s3:smbd: Add missing tevent_req_nterror.
    * BUG 11243: vfs: kernel_flock and named streams.
    * BUG 11244: vfs_gpfs: Error code path doesn't call END_PROFILE.


o   Alexander Bokovoy <ab@samba.org>
    * BUG 11284: s4: libcli/finddcs_cldap: continue processing CLDAP until all
      addresses are used.


o   David Disseldorp <ddiss@samba.org>
    * BUG 11201: ctdb: check for talloc_asprintf() failure.:w
    * BUG 11210: spoolss: purge the printer name cache on name change.


o   Amitay Isaacs <amitay@gmail.com>
    * BUG 11204: CTDB statd-callout does not scale.


o   Björn Jacke <bj@sernet.de>
    * BUG 11221: vfs_fruit: also map characters below 0x20.


o   Rajesh Joseph <rjoseph@redhat.com>
    * BUG 11201: ctdb: Coverity fix for CID 1291643.


o   Julien Kerihuel <j.kerihuel@openchange.org>
    * BUG 11225: Multiplexed RPC connections are not handled by DCERPC server.
    * BUG 11226: Fix terminate connection behavior for asynchronous endpoint
      with PUSH notification flavors.


o   Led <ledest@gmail.com>
    * BUG 11007: ctdb-scripts: Fix bashism in ctdbd_wrapper script.


o   Volker Lendecke <vl@samba.org>
    * BUG 11201: ctdb: Fix CIDs 1125615, 1125634, 1125613, 1288201 and 1125553.
    * BUG 11257: SMB2 should cancel pending NOTIFY calls with DELETE_PENDING if
      the directory is deleted.


o   Stefan Metzmacher <metze@samba.org>
    * BUG 11141: s3:winbindd: make sure we remove pending io requests before
      closing client sockets.
    * BUG 11182: Fix panic triggered by smbd_smb2_request_notify_done() ->
      smbXsrv_session_find_channel() in smbd.


o   Christof Schmitt <cs@samba.org>
    * BUG 11237: 'sharesec' output no longer matches input format.


o   Andreas Schneider <asn@samba.org>
    * BUG 11200: waf: Fix systemd detection.


o   Martin Schwenke <martin@meltin.net>
    * BUG 11202: CTDB: Fix portability issues.
    * BUG 11203: CTDB: Fix some IPv6-related issues.
    * BUG 11204: CTDB statd-callout does not scale.


o   Richard Sharpe <rsharpe@nutanix.com>
    * BUG 11234: 'net ads dns gethostbyname' crashes with an error in TALLOC_FREE
      if you enter invalid values.


o   Uri Simchoni <urisimchoni@gmail.com>
    * BUG 11267: libads: record service ticket endtime for sealed ldap
      connections.


o   Lukas Slebodnik <lslebodn@redhat.com>
    * BUG 11033: lib/util: Include DEBUG macro in internal header files before
      samba_util.h.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the Samba 4.2 product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


----------------------------------------------------------------------


                   =============================
                   Release Notes for Samba 4.2.1
                           April 15, 2015
                   =============================


This is the latest stable release of Samba 4.2.


Changes since 4.2.0:
--------------------

o   Michael Adam <obnox@samba.org>
    * BUG 8905: s3:winbind:grent: Don't stop group enumeration when a group has
      no gid.
    * BUG 10476: build:wafadmin: Fix use of spaces instead of tabs.
    * BUG 11143: s3-winbind: Fix cached user group lookup of trusted domains.


o   Jeremy Allison <jra@samba.org>
    * BUG 10016: s3: lib: ntlmssp: If NTLMSSP_NEGOTIATE_TARGET_INFO isn't set,
      cope with servers that don't send the 2 unused fields.
    * BUG 10888: s3: client: "client use spnego principal = yes" code checks
      wrong name.
    * BUG 11079: s3: lib: libsmbclient: If reusing a server struct, check every
      cli->timout miliseconds if it's still valid before use.
    * BUG 11173: s3: libcli: smb1: Ensure we correctly finish a tevent req if
      the writev fails in the SMB1 case.
    * BUG 11175: Fix lots of winbindd zombie processes on Solaris platform.
    * BUG 11177: s3: libsmbclient: Add missing talloc stackframe.


o   Andrew Bartlett <abartlet@samba.org>
    * BUG 11135: backupkey: Explicitly link to gnutls and gcrypt.
    * BUG 11174: backupkey: Use ndr_pull_struct_blob_all().


o   Ralph Boehme <slow@samba.org>
    * BUG 11125: vfs_fruit: Enhance handling of malformed AppleDouble files.


o   Samuel Cabrero <samuelcabrero@kernevil.me>
    * BUG 9791: Initialize dwFlags field of DNS_RPC_NODE structure.


o   David Disseldorp <ddiss@samba.org>
    * BUG 11169: docs/idmap_rid: Remove deprecated base_rid from example.


o   Volker Lendecke <vl@samba.org>
    * BUG 10476: waf: Fix the build on openbsd.


o   Stefan Metzmacher <metze@samba.org>
    * BUG 11144: talloc: Version 2.1.2.
    * BUG 11164: s4:auth/gensec_gssapi: Let gensec_gssapi_update() return
      NT_STATUS_LOGON_FAILURE for unknown errors.


o   Matthew Newton <matthew-git@newtoncomputing.co.uk>
    * BUG 11149: Update libwbclient version to 0.12.


o   Andreas Schneider <asn@samba.org>
    * BUG 11018: spoolss: Retrieve published printer GUID if not in registry.
    * BUG 11135: replace: Remove superfluous check for gcrypt header.
    * BUG 11180: s4-process_model: Do not close random fds while forking.
    * BUG 11185: s3-passdb: Fix 'force user' with winbind default domain.


o   Christof Schmitt <cs@samba.org>
    * BUG 11153: brlock: Use 0 instead of empty initializer list.


o   Thomas Schulz <schulz@adi.com>
    * BUG 11092: lib: texpect: Fix the build on Solaris.
    * BUG 11140: libcli/auth: Match Declaration of
      netlogon_creds_cli_context_tmp with implementation.


o   Jelmer Vernooij <jelmer@samba.org>
    * BUG 11137: Backport subunit changes.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the Samba 4.2 product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


----------------------------------------------------------------------


                   =============================
                   Release Notes for Samba 4.2.0
                           March 04, 2015
                   =============================


This is is the first stable release of Samba 4.2.

Samba 4.2 will be the next version of the Samba suite.


Samba User Survey 2015
======================

https://www.surveygizmo.com/s3/2020369/Samba-User-Survey-2015

Please take our survey. It will help us improve Samba by understanding
your knowledge and needs. The survey runs until end of March 2015 and
won't ask for any personal info. The full results will be shared with
the Samba Team, and statistical summaries will be shared with the
Samba community after the SambaXP conference (http://sambaxp.org).


IMPORTANT NOTE ABOUT THE SUPPORT END OF SAMBA 3
=================================================

With the final release of Samba 4.2, the last series of Samba 3 has
been discontinued! People still running 3.6.x or earlier,should
consider moving to a more recent and maintained version (4.0 - 4.2).
One of the common misconceptions is that Samba 4.x automatically
means "Active Directory only": This is wrong!

Acting as an Active Directory Domain Controller is just one of the
enhancements included in Samba 4.0 and later. Version 4.0 was just the
next release after the 3.6 series and contains all the features of the
previous ones - including the NT4-style (classic) domain support. This
means you can update a Samba 3.x NT4-style PDC to 4.x, just as you've
updated in the past (e.g. from 3.4.x to 3.5.x). You don't have to move
your NT4-style domain to an Active Directory!

And of course the possibility remains unchanged, to setup a new NT4-style
PDC with Samba 4.x, like done in the past (e.g. with openLDAP backend).
Active Directory support in Samba 4 is additional and does not replace
any of these features. We do understand the difficulty presented by
existing LDAP structures and for that reason there isn't a plan to
decommission the classic PDC support. It remains tested by the continuous
integration system.

The code that supports the classic Domain Controller is also the same
code that supports the internal 'Domain' of standalone servers and
Domain Member Servers. This means that we still use this code, even
when not acting as an AD Domain Controller. It is also the basis for
some of the features of FreeIPA and so it gets development attention
from that direction as well.


UPGRADING
=========

Read the "Winbindd/Netlogon improvements" section (below) carefully!


NEW FEATURES
============

Transparent File Compression
============================

Samba 4.2.0 adds support for the manipulation of file and folder
compression flags on the Btrfs filesystem.
With the Btrfs Samba VFS module enabled, SMB2+ compression flags can
be set remotely from the Windows Explorer File->Properties->Advanced
dialog. Files flagged for compression are transparently compressed
and uncompressed when accessed or modified.

Previous File Versions with Snapper
===================================

The newly added Snapper VFS module exposes snapshots managed by
Snapper for use by Samba. This provides the ability for remote
clients to access shadow-copies via Windows Explorer using the
"previous versions" dialog.

Winbindd/Netlogon improvements
==============================

The whole concept of maintaining the netlogon secure channel
to (other) domain controllers was rewritten in order to maintain
global state in a netlogon_creds_cli.tdb. This is the proper fix
for a large number of bugs:

  https://bugzilla.samba.org/show_bug.cgi?id=6563
  https://bugzilla.samba.org/show_bug.cgi?id=7944
  https://bugzilla.samba.org/show_bug.cgi?id=7945
  https://bugzilla.samba.org/show_bug.cgi?id=7568
  https://bugzilla.samba.org/show_bug.cgi?id=8599

In addition a strong session key is now required by default,
which means that communication to older servers or clients
might be rejected by default.

For the client side we have the following new options:
"require strong key" (yes by default), "reject md5 servers" (no by default).
E.g. for Samba 3.0.37 you need "require strong key = no" and
for NT4 DCs you need "require strong key = no" and "client NTLMv2 auth = no",

On the server side (as domain controller) we have the following new options:
"allow nt4 crypto" (no by default), "reject md5 client" (no by default).
E.g. in order to allow Samba < 3.0.27 or NT4 members to work
you need "allow nt4 crypto = yes"

winbindd does not list group memberships for display purposes
(e.g. getent group <domain\<group>) anymore by default.
The new default is "winbind expand groups = 0" now,
the reason for this is the same as for "winbind enum users = no"
and "winbind enum groups = no". Providing this information is not always
reliably possible, e.g. if there are trusted domains.

Please consult the smb.conf manpage for more details on these new options.

Winbindd use on the Samba AD DC
===============================

Winbindd is now used on the Samba AD DC by default, replacing the
partial rewrite used for winbind operations in Samba 4.0 and 4.1.

This allows more code to be shared, more options to be honoured, and
paves the way for support for trusted domains in the AD DC.

If required the old internal winbind can be activated by setting
'server services = +winbind -winbindd'.  Upgrading users with a server
services parameter specified should ensure they change 'winbind' to
'winbindd' to obtain the new functionality.

The 'samba' binary still manages the starting of this service, there
is no need to start the winbindd binary manually.

Winbind now requires secured connections
========================================

To improve protection against rogue domain controllers we now require
that when we connect to an AD DC in our forest, that the connection be
signed using SMB Signing.  Set 'client signing = off' in the smb.conf
to disable.

Also and DCE/RPC pipes must be sealed, set 'require strong key =
false' and 'winbind sealed pipes = false' to disable.

Finally, the default for 'client ldap sasl wrapping' has been set to
'sign', to ensure the integrity of LDAP connections.  Set 'client ldap
sasl wrapping = plain' to disable.

Larger IO sizes for SMB2/3 by default
=====================================

The default values for "smb2 max read", "smb2 max write" and "smb2 max trans"
have been changed to 8388608 (8MiB) in order to match the default of
Windows 2012R2.

SMB2 leases
===========

The SMB2 protocol allows clients to aggressively cache files
locally above and beyond the caching allowed by SMB1 and SMB2 oplocks.

Called SMB2 leases, this can greatly reduce traffic on an SMB2
connection. Samba 4.2 now implements SMB2 leases.

It can be turned on by setting the parameter "smb2 leases = yes"
in the [global] section of your smb.conf. This parameter is set
to off by default until the SMB2 leasing code is declared fully stable.

Improved DCERPC man in the middle detection
===========================================

The DCERPC header signing has been implemented
in addition to the dcerpc_sec_verification_trailer
protection.

Overhauled "net idmap" command
==============================

The command line interface of the "net idmap" command has been
made systematic, and subcommands for reading and writing the autorid idmap
database have been added. Note that the writing commands should be
used with great care. See the net(8) manual page for details.

tdb improvements
================

The tdb library, our core mechanism to store Samba-specific data on disk and
share it between processes, has been improved to support process shared robust
mutexes on Linux. These mutexes are available on Linux and Solaris and
significantly reduce the overhead involved with tdb. To enable mutexes for
tdb, set

dbwrap_tdb_mutexes:* = yes

in the [global] section of your smb.conf.

Tdb file space management has also been made more efficient. This
will lead to smaller and less fragmented databases.

Messaging improvements
======================

Our internal messaging subsystem, used for example for things like oplock
break messages between smbds or setting a process debug level dynamically, has
been rewritten to use unix domain datagram messages.

Clustering support
==================

Samba's file server clustering component CTDB is now integrated in the
Samba tree.  This avoids the confusion of compatibility of Samba and CTDB
versions as existed previously.

To build the Samba file server with cluster support, use the configure
command line option --with-cluster-support.  This will build clustered
file server against the in-tree CTDB and will also build CTDB.
Building clustered samba with previous versions of CTDB is no longer
supported.

Samba Registry Editor
=====================

The utitlity to browse the samba registry has been overhauled by our Google
Summer of Code student Chris Davis. Now samba-regedit has a
Midnight-Commander-like theme and UI experience. You can browse keys and edit
the diffent value types. For a data value type a hexeditor has been
implemented.

Bad Password Lockout in the AD DC
=================================

Samba's AD DC now implements bad password lockout (on a per-DC basis).

That is, incorrect password attempts are tracked, and accounts locked
out if too many bad passwords are submitted.  There is also a grace
period of 60 minutes on the previous password when used for NTLM
authentication (matching Windows 2003 SP1: https://support2.microsoft.com/kb/906305).

The relevant settings can be seen using 'samba-tool domain
passwordsettings show' (the new settings being highlighted):

Password informations for domain 'DC=samba,DC=example,DC=com'

Password complexity: on
Store plaintext passwords: off
Password history length: 24
Minimum password length: 7
Minimum password age (days): 1
Maximum password age (days): 42
* Account lockout duration (mins): 30     *
* Account lockout threshold (attempts): 0 *
* Reset account lockout after (mins): 30  *

These values can be set using 'samba-tool domain passwordsettings set'.

Correct defaults in the smb.conf manpages
=========================================

The default values for smb.conf parameters are now correctly specified
in the smb.conf manpage, even when they refer to build-time specified
paths.  Provided Samba is built on a system with the right tools
(xsltproc in particular) required to generate our man pages, then
these will be built with the exact same embedded paths as used by the
configuration parser at runtime.  Additionally, the default values
read from the smb.conf manpage are checked by our test suite to match
the values seen in testparm and used by the running binaries.

Consistent behaviour between samba-tool testparm and testparm
=============================================================

With the exception of the registry backend, which remains only
available in the file server, the behaviour of the smb.conf parser and
the tools 'samba-tool testparm' and 'testparm' is now consistent,
particularly with regard to default values.  Except with regard to
registry shares, it is no longer needed to use one tool on the AD
DC, and another on the file server.

VFS WORM module
===============

A VFS module for basic WORM (Write once read many) support has been
added. It allows an additional layer on top of a Samba share, that provides
a basic set of WORM functionality on the client side, to control the
writeability of files and folders.

As the module is simply an additional layer, share access and permissions
work like expected - only WORM functionality is added on top. Removing the
module from the share configuration, removes this layer again. The
filesystem ACLs are not affected in any way from the module and treated
as usual.

The module does not provide complete WORM functions, like some archiving
products do! It is not audit-proof, because the WORM function is only
available on the client side, when accessing a share through SMB! If
the same folder is shared by other services like NFS, the access only
depends on the underlying filesystem ACLs. Equally if you access the
content directly on the server.

For additional information, see
https://wiki.samba.org/index.php/VFS/vfs_worm

vfs_fruit, a VFS module for OS X clients
========================================

A new VFS module that provides enhanced compatibility with Apple SMB
clients and interoperability with a Netatalk 3 AFP fileserver.

The module features enhanced performance with reliable named streams
support, interoperability with special characters commonly used by OS
X client (eg '*', '/'), integrated file locking and Mac metadata
access with Netatalk 3 and enhanced performance by implementing
Apple's SMB2 extension codenamed "AAPL".

The modules behaviour is fully configurable, please refer to the
manpage vfs_fruit for further details.

smbclient archival improvements
===============================

Archive creation and extraction support in smbclient has been rewritten
to use libarchive. This fixes a number of outstanding bugs in Samba's
previous custom tar implementation and also adds support for the
extraction of zipped archives.
smbclient archive support can be enabled or disabled at build time with
corresponding --with[out]-libarchive configure parameters.


######################################################################
Changes
#######

smb.conf changes
----------------

   Parameter Name                       Description     Default
   --------------                       -----------     -------

   allow nt4 crypto                     New             no
   neutralize nt4 emulation             New             no
   reject md5 client                    New             no
   reject md5 servers                   New             no
   require strong key                   New             yes
   smb2 max read                        Changed default 8388608
   smb2 max write                       Changed default 8388608
   smb2 max trans                       Changed default 8388608
   winbind expand groups                Changed default 0


CHANGES SINCE 4.2.0rc5
======================

o   Michael Adam <obnox@samba.org>
    * BUG 11117: doc:man:vfs_glusterfs: improve the configuration section.


o   Jeremy Allison <jra@samba.org>
    * BUG 11118: tevent: Ignore unexpected signal events in the same way the
      epoll backend does.


o   Andrew Bartlett <abartlet@samba.org>
    * BUG 11100: debug: Set close-on-exec for the main log file FD.
    * BUG 11097: Fix Win8.1 Credentials Manager issue after KB2992611 on Samba
      domain.


o   Ira Cooper <ira@samba.org>
    * BUG 1115: smbd: Stop using vfs_Chdir after SMB_VFS_DISCONNECT.


o   Günther Deschner <gd@samba.org>
    * BUG 11088: vfs: Add a brief vfs_ceph manpage.


o   David Disseldorp <ddiss@samba.org>
    * BUG 11118: tevent: version 0.9.24.


o   Amitay Isaacs <amitay@gmail.com>
    * BUG 11124: ctdb-io: Do not use sys_write to write to client sockets.


o   Volker Lendecke <vl@samba.org>
    * BUG 11119: snprintf: Try to support %j.


o   Garming Sam <garming@catalyst.net.nz>
    * BUG 11097: Fix Win8.1 Credentials Manager issue after KB2992611 on Samba
      domain.


o   Andreas Schneider <asn@samba.org>
    * BUG 11127: doc-xml: Add 'sharesec' reference to 'access based share
      enum'.


CHANGES SINCE 4.2.0rc4
======================

o   Michael Adam <obnox@samba.org>
    * BUG 11032: Enable mutexes in gencache_notrans.tdb.
    * BUG 11058: cli_connect_nb_send: Don't segfault on host == NULL.


o   Jeremy Allison <jra@samba.org>
    * BUG 10849: s3: lib, s3: modules: Fix compilation on Solaris.
    * BUG 11044: Fix authentication using Kerberos (not AD).
    * BUG 11077: CVE-2015-0240: s3: netlogon: Ensure we don't call talloc_free
      on an uninitialized pointer.
    * BUG 11094: s3: smbclient: Allinfo leaves the file handle open.
    * BUG 11102: s3: smbd: leases - losen paranoia check. Stat opens can grant
      leases.
    * BUG 11104: s3: smbd: SMB2 close. If a file has delete on close, store the
      return info before deleting.


o   Ira Cooper <ira@samba.org>
    * BUG 11069: vfs_glusterfs: Add comments to the pipe(2) code.


o   Günther Deschner <gd@samba.org>
    * BUG 11070: s3-vfs: Fix developer build of vfs_ceph module.


o   David Disseldorp <ddiss@samba.org>
    * BUG 10808: printing/cups: Pack requested-attributes with IPP_TAG_KEYWORD.
    * BUG 11055: vfs_snapper: Correctly handles multi-byte DBus strings.
    * BUG 11059: libsmb: Provide authinfo domain for encrypted session
      referrals.


o   Poornima G <pgurusid@redhat.com>
    * BUG 11069: vfs_glusterfs: Implement AIO support.


o   Volker Lendecke <vl@samba.org>
    * BUG 11032: Enable mutexes in gencache_notrans.tdb.


o   Stefan Metzmacher <metze@samba.org>
    * BUG 9299: nsswitch: Fix soname of linux nss_*.so.2 modules.
    * BUG 9702: s3:smb2_server: protect against integer wrap with "smb2 max
      credits = 65535".
    * BUG 9810: Make validate_ldb of String(Generalized-Time) accept
      millisecond format ".000Z".
    * BUG 10112: Use -R linker flag on Solaris, not -rpath.


o   Marc Muehlfeld <mmuehlfeld@samba.org>
    * BUG 10909: samba-tool: Create NIS enabled users and unixHomeDirectory
      attribute.


o   Garming Sam <garming@catalyst.net.nz>
    * BUG 11022: Make Sharepoint search show user documents.


o   Christof Schmitt <cs@samba.org>
    * BUG 11032: Enable mutexes in gencache_notrans.tdb.


o   Andreas Schneider <asn@samba.org>
    * BUG 11058: utils: Fix 'net time' segfault.
    * BUG 11066: s3-pam_smbpass: Fix memory leak in pam_sm_authenticate().
    * BUG 11077: CVE-2015-0240: s3-netlogon: Make sure we do not deference a
      NULL pointer.


o   Raghavendra Talur <raghavendra.talur@gmail.com>
    * BUG 11069: vfs/glusterfs: Change xattr key to match gluster key.


CHANGES SINCE 4.2.0rc3
======================

o   Andrew Bartlett <abartlet@samba.org>
    * BUG 10993: CVE-2014-8143: dsdb-samldb: Check for extended access
      rights before we allow changes to userAccountControl.


o   Günther Deschner <gd@samba.org>
    * BUG 10240: vfs: Add glusterfs manpage.


o   David Disseldorp <ddiss@samba.org>
    * BUG 10984: Fix spoolss IDL response marshalling when returning error
      without clearing info.


o   Amitay Isaacs <amitay@gmail.com>
    * BUG 11000: ctdb-daemon: Use correct tdb flags when enabling robust mutex
      support.


o   Volker Lendecke <vl@samba.org>
    * BUG 11032: tdb_wrap: Make mutexes easier to use.
    * BUG 11039: vfs_fruit: Fix base_fsp name conversion.
    * BUG 11040: vfs_fruit: mmap under FreeBSD needs PROT_READ.
    * BUG 11051: net: Fix sam addgroupmem.


o   Stefan Metzmacher <metze@samba.org>
    * BUG 10940: s3:passdb: fix logic in pdb_set_pw_history().
    * BUG 11004: tdb: version 1.3.4.


o   Christof Schmitt <cs@samba.org>
    * BUG 11034: winbind: Retry after SESSION_EXPIRED error in ping-dc.


o   Andreas Schneider <asn@samba.org>
    * BUG 11008: s3-util: Fix authentication with long hostnames.
    * BUG 11026: nss_wrapper: check for nss.h.
    * BUG 11033: lib/util: Avoid collision which alread defined consumer DEBUG
      macro.
    * BUG 11037: s3-libads: Fix a possible segfault in kerberos_fetch_pac().


CHANGES SINCE 4.2.0rc2
======================

o   Michael Adam <obnox@samba.org>
    * BUG 10892: Integrate CTDB into top-level Samba build.


o   Jeremy Allison <jra@samba.org>
    * BUG 10851: lib: uid_wrapper: Fix setgroups and syscall detection on a
      system without native uid_wrapper library.
    * BUG 10896: s3-nmbd: Fix netbios name truncation.
    * BUG 10904: Fix smbclient loops doing a directory listing against Mac OS X 10
      server with a non-wildcard path.
    * BUG 10911: Add support for SMB2 leases.
    * BUG 10920: s3: nmbd: Ensure NetBIOS names are only 15 characters stored.
    * BUG 10966: libcli: SMB2: Pure SMB2-only negprot fix to make us behave as a
      Windows client does.
    * BUG 10982: s3: smbd: Fix *allocate* calls to follow POSIX error return
      convention.


o   Christian Ambach <ambi@samba.org>
    * BUG 9629: Make 'profiles' work again.


o   Björn Baumbach <bb@sernet.de>
    * BUG 11014: ctdb-build: Fix build without xsltproc.


o   Ralph Boehme <slow@samba.org>
    * BUG 10834: Don't build vfs_snapper on FreeBSD.
    * BUG 10971: vfs_streams_xattr: Check stream type.
    * BUG 10983: vfs_fruit: Add support for AAPL.
    * BUG 11005: vfs_streams_xattr: Add missing call to SMB_VFS_NEXT_CONNECT.


o   Günther Deschner <gd@samba.org>
    * BUG 9056: pam_winbind: fix warn_pwd_expire implementation.
    * BUG 10942: Cleanup add_string_to_array and usage.


o   David Disseldorp <ddiss@samba.org>
    * BUG 10898: spoolss: Fix handling of bad EnumJobs levels.
    * BUG 10905: Fix print job enumeration.


o   Amitay Isaacs <amitay@gmail.com>
    * BUG 10620: s4-dns: Add support for BIND 9.10.
    * BUG 10892: Integrate CTDB into top-level Samba build.
    * BUG 10996: Fix IPv6 support in CTDB.
    * BUG 11014: packaging: Include CTDB man pages in the tarball.


o   Björn Jacke <bj@sernet.de>
    * BUG 10835: nss_winbind: Add getgroupmembership for FreeBSD.


o   Guenter Kukkukk <linux@kukkukk.com>
    * BUG 10952: Fix 'samba-tool dns serverinfo <server>' for IPv6.


o   Volker Lendecke <vl@samba.org>
    * BUG 10932: pdb_tdb: Fix a TALLOC/SAFE_FREE mixup.
    * BUG 10942: dbwrap_ctdb: Pass on mutex flags to tdb_open.


o   Justin Maggard <jmaggard10@gmail.com>
    * BUG 10852: winbind3: Fix pwent variable substitution.


o   Kamen Mazdrashki <kamenim@samba.org>
    * BUG 10975: ldb: version 1.1.18


o   Stefan Metzmacher <metze@samba.org>
    * BUG 10781: tdb: version 1.3.3
    * BUG 10911: Add support for SMB2 leases.
    * BUG 10921: s3:smbd: Fix file corruption using "write cache size != 0".
    * BUG 10949: Fix RootDSE search with extended dn control.
    * BUG 10958: libcli/smb: only force signing of smb2 session setups when
      binding a new session.
    * BUG 10975: ldb: version 1.1.18
    * BUG 11016: pdb_get_trusteddom_pw() fails with non valid UTF16 random
      passwords.


o   Marc Muehlfeld <mmuehlfeld@samba.org>
    * BUG 10895: samba-tool group add: Add option '--nis-domain' and '--gid'.


o   Noel Power <noel.power@suse.com>
    * BUG 10918: btrfs: Don't leak opened directory handle.


o   Matt Rogers <mrogers@redhat.com>
    * BUG 10933: s3-keytab: fix keytab array NULL termination.


o   Garming Sam <garming@catalyst.net.nz>
    * BUG 10355: pdb: Fix build issues with shared modules.
    * BUG 10720: idmap: Return the correct id type to *id_to_sid methods.
    * BUG 10864: Fix testparm to show hidden share defaults.


o   Andreas Schneider <asn@samba.org>
    * BUG 10279: Make 'smbclient' use cached creds.
    * BUG 10960: s3-smbclient: Return success if we listed the shares.
    * BUG 10961: s3-smbstatus: Fix exit code of profile output.
    * BUG 10965: socket_wrapper: Add missing prototype check for eventfd.


o   Martin Schwenke <martin@meltin.net>
    * BUG 10892: Integrate CTDB into top-level Samba build.
    * BUG 10996: Fix IPv6 support in CTDB.


CHANGES SINCE 4.2.0rc1
======================

o   Jeremy Allison <jra@samba.org>
    * BUG 10848: s3: smb2cli: query info return length check was reversed.


o   Björn Baumbach <bb@sernet.de>
    * BUG 10862: build: Do not install 'texpect' binary anymore.


o   Chris Davis <cd.rattan@gmail.com>
    * BUG 10859: Improve samba-regedit.


o   Jakub Hrozek <jakub.hrozek@gmail.com>
    * BUG 10861: Fix build of socket_wrapper on systems without SO_PROTOCOL.


o   Volker Lendecke <vl@samba.org>
    * BUG 10860: registry: Don't leave dangling transactions.


o   Stefan Metzmacher <metze@samba.org>
    * BUG 10866: libcli/smb: Fix smb2cli_validate_negotiate_info with
      min=PROTOCOL_NT1 max=PROTOCOL_SMB2_02.


o   Christof Schmitt <cs@samba.org>
    * BUG 10837: idmap_rfc2307: Fix a crash after connection problem to DC.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the Samba 4.2 product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================