[ GLSA 200501-37 ] GraphicsMagick: PSD decoding heap overflow

From: Thierry Carrez (koon_at_gentoo.org)
Date: 01/26/05

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To: gentoo-announce@lists.gentoo.org

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    Gentoo Linux Security Advisory GLSA 200501-37
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                                                http://security.gentoo.org/
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      Severity: Normal
         Title: GraphicsMagick: PSD decoding heap overflow
          Date: January 26, 2005
          Bugs: #79336
            ID: 200501-37

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    Synopsis
    ========

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

    Background
    ==========

    GraphicsMagick is a collection of tools to read, write and manipulate
    images in many formats. GraphicsMagick is originally derived from
    ImageMagick 5.5.2.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 media-gfx/graphicsmagick < 1.1.5 >= 1.1.5

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

    Andrei Nigmatulin discovered that handling a Photoshop Document (PSD)
    file with more than 24 layers in ImageMagick could trigger a heap
    overflow (GLSA 200501-26). GraphicsMagick is based on the same code and
    therefore suffers from the same flaw.

    Impact
    ======

    An attacker could potentially design a malicious PSD image file to
    cause arbitrary code execution with the permissions 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-1.1.5"

    References
    ==========

      [ 1 ] CAN-2005-0005
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0005
      [ 2 ] GLSA 200501-26
            http://www.gentoo.org/security/en/glsa/glsa-200501-26.xml

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

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

      http://security.gentoo.org/glsa/glsa-200501-37.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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