[UNIX] ImageMagic SGI Buffer Overflow, PSD/TIFF DoS and Filename Format String

From: SecuriTeam (support_at_securiteam.com)
Date: 03/24/05

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Date: 24 Mar 2005 19:18:09 +0200

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      ImageMagic SGI Buffer Overflow, PSD/TIFF DoS and Filename Format String
    ------------------------------------------------------------------------

    SUMMARY

     <http://www.imagemagick.org/> ImageMagickTM, "is a free software suite
    for the creation, modification and display of bitmap images".

    ImageMagic contain vulnerabilities that allow attacker to cause the
    program to execute arbitrary code by exploiting a problem caused by poor
    sanitization of the filename and allows attackers to crash ImageMagic by
    making it process specially crafted image files.

    DETAILS

    Vulnerable Systems:
     * ImageMagic version 6.1.8 and prior

    Immune Systems:
     * ImageMagic version 6.2.0

    Format String:
    The format string vulnerability allows remote attackers to execute code
    as the user running display by providing handcrafted filenames of images.

    Buffer Overflow:
    An heap overflow was found in ImageMagick's SGI parser. It is possible
    that an attacker can leverage this to cause the program to execute
    arbitrary code by tricking a user into opening a specially crafted SGI
    image file.

    Denial of Service:
    A specially crafted TIFF image or an invalid TIFF tag can be used to cause
    ImageMagick to crash. The ImageMagick parser of PSD files can be used to
    cause ImageMagic to crash by suppling it with a specially crafted PSD
    file.

    Vendor Status:
    A new version of ImageMagic is available at:
    <http://www.imagemagick.org/> http://www.imagemagick.org/.

    CVE Information:
     <http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0397>
    CAN-2005-0397
     <http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0759>
    CAN-2005-0759
     <http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0760>
    CAN-2005-0760
     <http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0761>
    CAN-2005-0761
     <http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0762>
    CAN-2005-0762

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:meissner@suse.de> Marcus
    Meissner.

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