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

[Raphael Marichez <falco () gentoo org>]

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200808-07
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: Low
     Title: ClamAV: Multiple Denials of Service
      Date: August 08, 2008
      Bugs: #204340, #227351
        ID: 200808-07

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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

Attachment: _bin
Description:

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/