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Gentoo Linux Security Advisory                           GLSA 200602-06
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: ImageMagick: Format string vulnerability
      Date: February 13, 2006
      Bugs: #83542
        ID: 200602-06

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Synopsis
=======
A vulnerability in ImageMagick allows attackers to crash the
application and potentially execute arbitrary code.

Background
=========
ImageMagick is an application suite to manipulate and convert images.
It is often used as a utility backend by web applications like forums,
content management systems or picture galleries.

Affected packages
================
    -------------------------------------------------------------------
     Package                /  Vulnerable  /                Unaffected
    -------------------------------------------------------------------
  1  media-gfx/imagemagick      < 6.2.5.5                   >= 6.2.5.5

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. This is a
new vulnerability that is not addressed by GLSA 200503-11.

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

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

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

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-gfx/imagemagick-6.2.5.5"

References
=========
  [ 1 ] CVE-2006-0082
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0082
  [ 2 ] GLSA 200503-11
        https://security.gentoo.org/glsa/200503-11

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

  https://security.gentoo.org/glsa/200602-06

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/.

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.

https://creativecommons.org/licenses/by-sa/2.0/