The Magick_png_malloc function in coders/png.c in GraphicsMagick 6.7.8-6 does not use the proper variable type for the allocation size, which might allow remote attackers to cause a denial of service (crash) via a crafted PNG file that triggers incorrect memory allocation. Per: http://xforce.iss.net/xforce/xfdb/77259
'Platforms Affected: GraphicsMagick 1.3.16'
Publication date: Wed, 08 Aug 2012 02:55:00 +0000