A heap buffer overflow issue was found in ImageMagick. When an application processes a malformed TIFF file, it could lead to undefined behavior or a crash causing a denial of service.
https://github.com/ImageMagick/ImageMagick6/commit/1aea203eb36409ce6903b9e41fe7cb70030e8750
https://github.com/ImageMagick/ImageMagick/commit/30ccf9a0da1f47161b5935a95be854fe84e6c2a2