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Gentoo Linux Security Advisory 200808-7

Gentoo Linux Security Advisory 200808-7
Posted Aug 8, 2008
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory GLSA 200808-07 - Damian Put has discovered an out-of-bounds memory access while processing Petite files (CVE-2008-2713, CVE-2008-3215). Also, please note that the 0.93 ClamAV branch fixes the first of the two attack vectors of CVE-2007-6595 concerning an insecure creation of temporary files vulnerability. The sigtool attack vector seems still unfixed. Versions less than 0.93.3 are affected.

tags | advisory
systems | linux, gentoo
advisories | CVE-2007-6595, CVE-2008-2713, CVE-2008-3215
SHA-256 | 72e5ff72652f3e908577cc6bcfb0e2b935ef32a1138deaa2c92eaaa5dc59473b

Gentoo Linux Security Advisory 200808-7

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Gentoo Linux Security Advisory GLSA 200808-07
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http://security.gentoo.org/
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Severity: Low
Title: ClamAV: Multiple Denials of Service
Date: August 08, 2008
Bugs: #204340, #227351
ID: 200808-07

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Synopsis
========

Multiple vulnerabilities in ClamAV may result in a Denial of Service.

Background
==========

Clam AntiVirus is a free anti-virus toolkit for UNIX, designed
especially for e-mail scanning on mail gateways.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-antivirus/clamav < 0.93.3 >= 0.93.3

Description
===========

Damian Put has discovered an out-of-bounds memory access while
processing Petite files (CVE-2008-2713, CVE-2008-3215). Also, please
note that the 0.93 ClamAV branch fixes the first of the two attack
vectors of CVE-2007-6595 concerning an insecure creation of temporary
files vulnerability. The sigtool attack vector seems still unfixed.

Impact
======

A remote attacker could entice a user or automated system to scan a
specially crafted Petite file, possibly resulting in a Denial of
Service (daemon crash). Also, the insecure creation of temporary files
vulnerability can be triggered by a local user to perform a symlink
attack.

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-0.93.3"

References
==========

[ 1 ] CVE-2007-6595
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6595
[ 2 ] CVE-2008-2713
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2713
[ 3 ] CVE-2008-3215
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3215

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

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

http://security.gentoo.org/glsa/glsa-200808-07.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 2008 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/2.5
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