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CVE-2013-4408:s4:dcerpc: check for invalid frag_len in ncacn_pull()
author
Stefan Metzmacher
<metze@samba.org>
Wed, 25 Sep 2013 21:25:12 +0000
(23:25 +0200)
committer
Karolin Seeger
<kseeger@samba.org>
Mon, 9 Dec 2013 06:05:45 +0000
(07:05 +0100)
Bug: https://bugzilla.samba.org/show_bug.cgi?id=10185
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
source4/librpc/rpc/dcerpc.c
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diff --git
a/source4/librpc/rpc/dcerpc.c
b/source4/librpc/rpc/dcerpc.c
index fd724063c2ac0756ec2af4d6c7191ddc2e8c1592..56b821ecce09c23dc0bbae330ffa8ed424221e48 100644
(file)
--- a/
source4/librpc/rpc/dcerpc.c
+++ b/
source4/librpc/rpc/dcerpc.c
@@
-717,6
+717,10
@@
static NTSTATUS ncacn_pull(struct dcecli_connection *c, DATA_BLOB *blob, TALLOC_
return ndr_map_error2ntstatus(ndr_err);
}
+ if (pkt->frag_length != blob->length) {
+ return NT_STATUS_RPC_PROTOCOL_ERROR;
+ }
+
return NT_STATUS_OK;
}