[ GLSA 200804-29 ] Comix: Multiple vulnerabilities

[Pierre-Yves Rofes <py () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200804-29
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Comix: Multiple vulnerabilities
      Date: April 25, 2008
      Bugs: #215694
        ID: 200804-29

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Synopsis
========

Multiple vulnerabilities in Comix may lead to execution of arbitrary
commands and a Denial of Service.

Background
==========

Comix is a GTK comic book viewer.

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

    -------------------------------------------------------------------
     Package          /  Vulnerable  /                      Unaffected
    -------------------------------------------------------------------
  1  media-gfx/comix     < 3.6.4-r1                        >= 3.6.4-r1

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

Comix does not properly sanitize filenames containing shell
metacharacters when they are passed to the rar, unrar, or jpegtran
programs (CVE-2008-1568). Comix also creates directories with
predictable names (CVE-2008-1796).

Impact
======

A remote attacker could exploit the first vulnerability by enticing a
user to use Comix to open a file with a specially crafted filename,
resulting in the execution of arbitrary commands. The second
vulnerability could be exploited by a local attacker to cause a Denial
of Service by creating a file or directory with the same filename as
the predictable filename used by Comix.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Comix users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-gfx/comix-3.6.4-r1"

References
==========

  [ 1 ] CVE-2008-1568
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1568
  [ 2 ] CVE-2008-1796
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1796

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

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

  http://security.gentoo.org/glsa/glsa-200804-29.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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