[gentoo-announce] [ GLSA 200808-07 ] ClamAV: Multiple Denials of Service

[news 28]

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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

=================

 

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Package / Vulnerable / Unaffected

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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 ( -at -) 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