GLSA 200602-13 GraphicsMagick: Format string vulnerability
Posted on: 02/26/2006 05:22 PM

A new security update has been released for Gentoo Linux - GraphicsMagick: Format string vulnerability. Here the announcement:

Gentoo Linux Security Advisory GLSA 200602-13
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http://security.gentoo.org/
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Severity: Normal
Title: GraphicsMagick: Format string vulnerability
Date: February 26, 2006
Bugs: #119476
ID: 200602-13

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Synopsis
========

A vulnerability in GraphicsMagick allows attackers to crash the
application and potentially execute arbitrary code.

Background
==========

GraphicsMagick is a collection of tools to read, write and manipulate
images in many formats.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-gfx/graphicsmagick lt; 1.1.7 gt;= 1.1.7

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

The SetImageInfo function was found vulnerable to a format string
mishandling. Daniel Kobras discovered that the handling of "%"-escaped
sequences in filenames passed to the function is inadequate in
ImageMagick GLSA 200602-06 and the same vulnerability exists in
GraphicsMagick.

Impact
======

By feeding specially crafted file names to GraphicsMagick an attacker
can crash the program and possibly execute arbitrary code with the
privileges of the user running GraphicsMagick.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All GraphicsMagick users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=media-gfx/graphicsmagick-1.1.7"

References
==========

[ 1 ] GLSA 200602-06
http://www.gentoo.org/security/en/glsa/glsa-200602-06.xml

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

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

http://security.gentoo.org/glsa/glsa-200602-13.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 2006 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/2.0



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