Date: Thu, 11 Nov 2004 22:07:17 +0100
From: Matthias Geerdsen <vorlon@gentoo.org>
To: gentoo-announce@lists.gentoo.org
Subject: [ GLSA 200411-21 ] Samba: Remote Denial of Service
Cc: bugtraq@securityfocus.com, full-disclosure@lists.netsys.com,
security-alerts@linuxsecurity.com
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Gentoo Linux Security Advisory GLSA 200411-21
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http://security.gentoo.org/
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Severity: Normal
Title: Samba: Remote Denial of Service
Date: November 11, 2004
Bugs: #70429
ID: 200411-21
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Synopsis
========
An input validation flaw in Samba may allow a remote attacker to cause
a Denial of Service by excessive consumption of CPU cycles.
Background
==========
Samba is a freely available SMB/CIFS implementation which allows
seamless interoperability of file and print services to other SMB/CIFS
clients.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-fs/samba < 3.0.8 >= 3.0.8
< 3.0
Description
===========
An input validation flaw exists in ms_fnmatch.c when matching filenames
that contain wildcards.
Impact
======
A remote attacker may be able to cause an abnormal consumption of CPU
resources, resulting in slower performance of the server or even a
Denial of Service.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Samba users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-fs/samba-3.0.8"
References
==========
[ 1 ] Samba Security Announcement
http://www.samba.org/samba/security/CAN-2004-0930.html
[ 2 ] CAN-2004-0930
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0930
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200411-21.xml
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2004 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
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