[Pkg-samba-maint] Bug#451385: CVE-2007-5398 remote code execution via NetBIOS replies

[Nico Golde]

Package: samba
Version: 3.0.24-6etch4
Severity: grave
Tags: security patch

Hi,
the following CVE (Common Vulnerabilities & Exposures) id was
published for samba.

CVE-2007-5398:
| Secunia Research has discovered a vulnerability in Samba, which can be
| exploited by malicious people to compromise a vulnerable system.
| 
| The vulnerability is caused due to a boundary error within the 
| "reply_netbios_packet()" function in nmbd/nmbd_packets.c when sending
| NetBIOS replies. This can be exploited to cause a stack-based buffer
| overflow by sending multiple specially crafted WINS "Name Registration"
| requests followed by a WINS "Name Query" request.
| 
| Successful exploitation allows execution of arbitrary code, but
| requires that Samba is configured to run as a WINS server (the "wins
| support" option is enabled).

This information is from:
http://secunia.com/secunia_research/2007-90/advisory/

Mitre did not yet published it but it will be available later on [0].
Please also see: http://us1.samba.org/samba/security/CVE-2007-4572.html
and http://us1.samba.org/samba/ftp/patches/security/samba-3.0.26a-CVE-2007-5398.patch
for the patch.

If you fix this vulnerability please also include the CVE id
in your changelog entry.

For further information:
[0] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5398

Kind regards
Nico

-- 
Nico Golde - http://www.ngolde.de - nion at jabber.ccc.de - GPG: 0x73647CFF
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