GLSA 200507-25: Clam AntiVirus: Integer overflows
Posted on: 07/27/2005 03:01 AM

A Clam AntiVirus update has been released for Gentoo Linux

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Gentoo Linux Security Advisory GLSA 200507-25
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http://security.gentoo.org/
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Severity: High
Title: Clam AntiVirus: Integer overflows
Date: July 26, 2005
Bugs: #100178
ID: 200507-25

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Synopsis
=======

Clam AntiVirus is vulnerable to integer overflows when handling several file formats, potentially resulting in the execution of arbitrary code.

Background
=========

Clam AntiVirus is a GPL anti-virus toolkit, designed for integration with mail servers to perform attachment scanning. Clam AntiVirus also provides a command line scanner and a tool for fetching updates of the virus database.

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

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Package / Vulnerable / Unaffected
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1 app-antivirus/clamav lt; 0.86.2 gt;= 0.86.2

Description
==========

Neel Mehta and Alex Wheeler discovered that Clam AntiVirus is vulnerable to integer overflows when handling the TNEF, CHM and FSG file formats.

Impact
=====

By sending a specially-crafted file an attacker could execute arbitrary code with the permissions of the user running Clam AntiVirus.

Workaround
=========

There is no known workaround at this time.

Resolution
=========

All Clam AntiVirus users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=app-antivirus/clamav-0.86.2"

References
=========

[ 1 ] BugTraq Announcement
http://www.securityfocus.com/archive/1/406377/30/
[ 2 ] Clam AntiVirus: Release Notes
http://sourceforge.net/project/shownotes.php?release_id=344514

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

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

http://security.gentoo.org/glsa/glsa-200507-25.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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