[Full-disclosure] [gentoo-announce] [ GLSA 200505-16 ] ImageMagick, GraphicsMagick: Denial of Service vulnerability

From: Thierry Carrez (koon_at_gentoo.org)
Date: 05/21/05

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    Date: Sat, 21 May 2005 17:33:29 +0200
To: gentoo-announce@lists.gentoo.org

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    Gentoo Linux Security Advisory GLSA 200505-16
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                                                http://security.gentoo.org/
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      Severity: Normal
         Title: ImageMagick, GraphicsMagick: Denial of Service
                vulnerability
          Date: May 21, 2005
          Bugs: #90423, #90595
            ID: 200505-16

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    Synopsis
    ========

    ImageMagick and GraphicsMagick utilities can be abused to perform a
    Denial of Service attack.

    Background
    ==========

    Both ImageMagick and GraphicsMagick are collection of tools to read,
    write and manipulate images in many formats.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 media-gfx/imagemagick < 6.2.2.3 >= 6.2.2.3
      2 media-gfx/graphicsmagick < 1.1.6-r1 >= 1.1.6-r1
        -------------------------------------------------------------------
         2 affected packages on all of their supported architectures.
        -------------------------------------------------------------------

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

    Tavis Ormandy of the Gentoo Linux Security Audit Team discovered a
    Denial of Service vulnerability in the XWD decoder of ImageMagick and
    GraphicsMagick when setting a color mask to zero.

    Impact
    ======

    A remote attacker could submit a specially crafted image to a user or
    an automated system making use of an affected utility, resulting in a
    Denial of Service by consumption of CPU time.

    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-6.2.2.3"

    All GraphicsMagick users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=media-gfx/graphicsmagick-1.1.6-r1"

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

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

      http://security.gentoo.org/glsa/glsa-200505-16.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 

    


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