Date: Sun, 26 Feb 2006 16:53:42 +0100
From: Thierry Carrez <koon@gentoo.org.>
To: gentoo-announce@lists.gentoo.org
Subject: [ GLSA 200602-13 ] GraphicsMagick: Format string vulnerability
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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 < 1.1.7 >= 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 ">=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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