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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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