ImageMagick and GraphicsMagick encounter a read beyond an allocated heap buffer when reading CMYKA TIFF files which claim to offer fewer samples per pixel than required. A maliciously crafted file could cause the application to crash.
Created GraphicsMagick tracking bugs for this issue:
Affects: epel-all [bug 1427979]
Affects: fedora-all [bug 1427977]
Created ImageMagick tracking bugs for this issue:
Affects: fedora-all [bug 1427978]