The ReadTIFFImage function in coders/tiff.c in ImageMagick 7.0.7-26 Q16 does not properly restrict memory allocation, leading to a heap-based buffer over-read.Referenceshttps://github.com/ImageMagick/ImageMagick/issues/1020https://usn.ubuntu.com/3681-1/http://www.securityfocus.com/bid/103523https://lists.debian.org/debian-lts-announce/2020/08/msg00030.html
