full-disclosure - [ GLSA 200804-29 ] Comix: Multiple vulnerabilities

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Date: Fri, 25 Apr 2008 22:41:28 +0200
From: Pierre-Yves Rofes <py@...too.org>
To: gentoo-announce@...too.org
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200804-29 ] Comix: Multiple vulnerabilities

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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@...too.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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