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CVE-2013-4408:librpc: check for invalid frag_len within dcerpc_read_ncacn_packet_done()
author
Stefan Metzmacher
<metze@samba.org>
Tue, 24 Sep 2013 03:03:40 +0000
(
05:03
+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>
librpc/rpc/dcerpc_util.c
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diff --git
a/librpc/rpc/dcerpc_util.c
b/librpc/rpc/dcerpc_util.c
index 980b0709dbaed2ceaa87f7823b85162d35aae9ed..c963da84ce38d265e199fec143e466fe7ca82c1d 100644
(file)
--- a/
librpc/rpc/dcerpc_util.c
+++ b/
librpc/rpc/dcerpc_util.c
@@
-292,6
+292,11
@@
static void dcerpc_read_ncacn_packet_done(struct tevent_req *subreq)
return;
}
+ if (state->pkt->frag_length != state->buffer.length) {
+ tevent_req_nterror(req, NT_STATUS_RPC_PROTOCOL_ERROR);
+ return;
+ }
+
tevent_req_done(req);
}