[ GLSA 200501-26 ] ImageMagick: PSD decoding heap overflow

[Sune Kloppenborg Jeppesen <jaervosz () gentoo org>]

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200501-26
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: Normal
     Title: ImageMagick: PSD decoding heap overflow
      Date: January 20, 2005
      Bugs: #77932
        ID: 200501-26

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

ImageMagick is vulnerable to a heap overflow when decoding Photoshop
Document (PSD) files, which could lead to arbitrary code execution.

Background
==========

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

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

    -------------------------------------------------------------------
     Package                /  Vulnerable  /                Unaffected
    -------------------------------------------------------------------
  1  media-gfx/imagemagick      < 6.1.8.8                   >= 6.1.8.8

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

Andrei Nigmatulin discovered that a Photoshop Document (PSD) file with
more than 24 layers could trigger a heap overflow.

Impact
======

An attacker could potentially design a mailicous PSD image file to
cause arbitrary code execution with the permissions 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-6.1.8.8"

References
==========

  [ 1 ] CAN-2005-0005
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0005
  [ 2 ] iDEFENSE Advisory
        http://www.idefense.com/application/poi/display?id=184&type=vulnerabilities

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

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

  http://security.gentoo.org/glsa/glsa-200501-26.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 2005 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

Attachment: _bin
Description:

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.netsys.com/full-disclosure-charter.html