ImageMagick and GraphicsMagick -- DoS via specially crafted PNG file

Description:

Kurt Seifried reports:

There is an issue in ImageMagick that is also present in GraphicsMagick. CVE-2011-3026 deals with libpng memory allocation, and limitations have been added so that a bad PNG can't cause the system to allocate a lot of memory and a denial of service. However on further investigation of ImageMagick, Tom Lane found that PNG malloc function (Magick_png_malloc) in turn calls AcquireMagickMemory with an improper size argument.

References:

• CVE name CVE-2012-3438
• URL: <https://bugzilla.redhat.com/show_bug.cgi?id=844105>
• BugTraq ID 54716
• URL: <http://secunia.com/advisories/50090>
• URL: <http://xforce.iss.net/xforce/xfdb/77259>
• URL: <http://osvdb.org/show/osvdb/84323>

Affects:

• ImageMagick <=6.7.8.6
• ImageMagick-nox11 <=6.7.8.6
• GraphicsMagick >=1.3.0 <=1.3.16
• GraphicsMagick-nox11 >=1.3.0 <=1.3.16

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