GLSA 200602-13: GraphicsMagick: Format string vulnerability

http://security.gentoo.org/

Severity:	normal
Title:	GraphicsMagick: Format string vulnerability
Date:	02/26/2006
Bugs:	#119476
ID:	200602-13

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	Architecture(s)
media-gfx/graphicsmagick	< 1.1.7	>= 1.1.7	All supported architectures

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

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 https://bugs.gentoo.org.