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Gentoo Linux Security Advisory                           GLSA 200805-10
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http://security.gentoo.org/ 
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  Severity: Normal
     Title: Pngcrush: User-assisted execution of arbitrary code
      Date: May 11, 2008
      Bugs: #219033
        ID: 200805-10

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Synopsis
=======
A vulnerability in Pngcrush might result in user-assisted execution of
arbitrary code.

Background
=========
Pngcrush is a multi platform optimizer for PNG (Portable Network
Graphics) files.

Affected packages
================
    -------------------------------------------------------------------
     Package             /  Vulnerable  /                   Unaffected
    -------------------------------------------------------------------
  1  media-gfx/pngcrush     < 1.6.4-r1                     >= 1.6.4-r1

Description
==========
It has been reported that Pngcrush includes a copy of libpng that is
vulnerable to a memory corruption (GLSA 200804-15).

Impact
=====
A remote attacker could entice a user to process a specially crafted
PNG image, possibly resulting in the execution of arbitrary code with
the privileges of the user running the application, or a Denial of
Service.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All Pngcrush users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-gfx/pngcrush-1.6.4-r1"

References
=========
  [ 1 ] CVE-2008-1382
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1382 
  [ 2 ] GLSA 200804-15
http://www.gentoo.org/security/en/glsa/glsa-200804-15.xml 

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

http://security.gentoo.org/glsa/glsa-200805-10.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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