[Pkg-samba-maint] [samba] 06/26: CVE-2013-4408:s4:dcerpc: check for invalid frag_len in ncacn_pull()

[Ivo De Decker]

This is an automated email from the git hooks/post-receive script.

idd-guest pushed a commit to branch samba_4.1
in repository samba.

commit 730027c34013f00bd1191be393998c7e5c3c6ee4
Author: Stefan Metzmacher <metze at samba.org>
Date:   Wed Sep 25 23:25:12 2013 +0200

    CVE-2013-4408:s4:dcerpc: check for invalid frag_len in ncacn_pull()
    
    Bug: https://bugzilla.samba.org/show_bug.cgi?id=10185
    
    Signed-off-by: Stefan Metzmacher <metze at samba.org>
    Reviewed-by: Jeremy Allison <jra at samba.org>
---
 source4/librpc/rpc/dcerpc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/source4/librpc/rpc/dcerpc.c b/source4/librpc/rpc/dcerpc.c
index e653cba..2826160 100644
--- a/source4/librpc/rpc/dcerpc.c
+++ b/source4/librpc/rpc/dcerpc.c
@@ -693,6 +693,10 @@ 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;
 }
 

-- 
Alioth's /usr/local/bin/git-commit-notice on /srv/git.debian.org/git/pkg-samba/samba.git