The ReadVIFFImage function in coders/viff.c in ImageMagick allows remote attackers to cause a denial of service (segmentation fault) via a crafted VIFF file.
https://github.com/ImageMagick/ImageMagick/issues/99
https://github.com/ImageMagick/ImageMagick/commit/ca0c886abd6d3ef335eb74150cd23b89ebd17135
https://github.com/ImageMagick/ImageMagick/commit/7be16a280014f895a951db4948df316a23dabc09
https://bugzilla.redhat.com/show_bug.cgi?id=1378760
https://bugs.launchpad.net/ubuntu/+source/imagemagick/+bug/1537425