+++ This bug was initially created as a clone of Bug #158790 +++ The XWD Decoder in ImageMagick before 6.2.2.3, and GraphicsMagick before 1.1.6-r1, allows remote attackers to cause a denial of service (infinite loop) via an image with a zero color mask.
Additional information can be found here: http://bugs.gentoo.org/show_bug.cgi?id=90423