The VerticalFilter function in the DDS coder in ImageMagick before 6.9.4-3 and 7.x before 7.0.1-4 allows remote attackers to have unspecified impact via a crafted DDS file, which triggers an out-of-bounds read.
The OpenBlob function in blob.c in GraphicsMagick before 1.3.24 and ImageMagick allows remote attackers to execute arbitrary code via a | (pipe) character at the start of a filename.