GraphicsMagick before 1.3.35 has an integer overflow and resultant heap-based buffer overflow in HuffmanDecodeImage in magick/compress.c.
lists.opensuse.org/opensuse-security-announce/2020-03/msg00049.html
lists.opensuse.org/opensuse-security-announce/2020-03/msg00051.html
lists.debian.org/debian-lts-announce/2020/04/msg00007.html
sourceforge.net/p/graphicsmagick/code/ci/5b4dd7c6674140a115ec9424c8d19c6a458fac3e/
www.debian.org/security/2020/dsa-4675