Gentoo: 201209-08 SquidClamav: Denial of Service
Posted by Benjamin D. Thomas   
Gentoo A vulnerability in SquidClamav may result in Denial of Service.
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Gentoo Linux Security Advisory                           GLSA 201209-08
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: SquidClamav: Denial of Service
     Date: September 24, 2012
     Bugs: #428778
       ID: 201209-08

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Synopsis
========

A vulnerability in SquidClamav may result in Denial of Service.

Background
==========

SquidClamav is a HTTP anti-virus for Squid based on ClamAV and ICAP.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-proxy/squidclamav         < 6.8                       >= 6.8

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

SquidClamav does not properly escape URLs before passing them to the
system command call.

Impact
======

A remote attacker could send a specially crafted URL to SquidClamav,
possibly resulting in a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All SquidClamav users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-proxy/squidclamav-6.8"

References
==========

[ 1 ] CVE-2012-3501
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3501
[ 2 ] SquidClamav News
      http://squidclamav.darold.net/news.html

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

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

 http://security.gentoo.org/glsa/glsa-201209-08.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
https://bugs.gentoo.org.

License

Copyright 2012 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