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Gentoo Linux Security Advisory                           GLSA 200611-07
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  Severity: Normal
     Title: GraphicsMagick: PALM and DCM buffer overflows
      Date: November 13, 2006
      Bugs: #152668
        ID: 200611-07

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Synopsis
========

GraphicsMagick improperly handles PALM and DCM images, potentially
resulting in the execution of arbitrary code.

Background
==========

GraphicsMagick is a collection of tools and libraries which support
reading, writing, and manipulating images in many major formats.

Affected packages
=================

    -------------------------------------------------------------------
     Package                   /  Vulnerable  /             Unaffected
    -------------------------------------------------------------------
  1  media-gfx/graphicsmagick     < 1.1.7-r3               >= 1.1.7-r3

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

M. Joonas Pihlaja has reported that a boundary error exists within the
ReadDCMImage() function of coders/dcm.c, causing the improper handling
of DCM images. Pihlaja also reported that there are several boundary
errors in the ReadPALMImage() function of coders/palm.c, similarly
causing the improper handling of PALM images.

Impact
======

An attacker could entice a user to open a specially crafted DCM or PALM
image with GraphicsMagick, 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-r3"

References
==========

  [ 1 ] CVE-2006-5456
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5456

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

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

  http://security.gentoo.org/glsa/glsa-200611-07.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/2.5

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