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. The affected versions are 6.x before 6.9.12-62 and 7.x before 7.1.0-47.
CWE-787 - Out-of-Bounds Write
Out-of-bounds write vulnerability is a memory access bug that allows software to write data past the end or before the beginning of the intended buffer. This may result in the corruption of data, a crash, or arbitrary code execution.