GLSA 200501-46: ClamAV
Posted on: 01/31/2005 05:23 PM

A ClamAV security update has been released for Gentoo Linux

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Gentoo Linux Security Advisory GLSA 200501-46
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http://security.gentoo.org/
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Severity: Normal
Title: ClamAV: Multiple issues
Date: January 31, 2005
Bugs: #78656, #79194
ID: 200501-46

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Synopsis
=======

ClamAV contains two vulnerabilities that could lead to Denial of Service and evasion of virus scanning.

Background
=========

ClamAV is an antivirus toolkit. It includes a multi-threaded daemon and a command line scanner.

Affected packages
================

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Package / Vulnerable / Unaffected
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1 app-antivirus/clamav <= 0.80 >= 0.81

Description
==========

ClamAV fails to properly scan ZIP files with special headers (CAN-2005-0133) and base64 encoded images in URLs.

Impact
=====

By sending a base64 encoded image file in a URL an attacker could evade virus scanning. By sending a specially-crafted ZIP file an attacker could cause a Denial of Service by crashing the clamd daemon.

Workaround
=========

There is no known workaround at this time.

Resolution
=========

All ClamAV users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.81"

References
=========

[ 1 ] CAN-2005-0133
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0133
[ 2 ] ClamAV Release Announcement
http://sourceforge.net/forum/forum.php?forum_id=440649
[ 3 ] Secunia SA13900
http://secunia.com/advisories/13900/

Availability
===========

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200501-46.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 2005 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.

http://creativecommons.org/licenses/by-sa/2.0


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