ImageMagick 7.0.8-50 Q16 has a stack-based buffer overflow at coders/pnm.c in WritePNMImage because of a misplaced assignment.
https://www.debian.org/security/2020/dsa-4715
https://www.debian.org/security/2020/dsa-4712
https://usn.ubuntu.com/4192-1/
https://lists.debian.org/debian-lts-announce/2019/08/msg00021.html
https://github.com/ImageMagick/ImageMagick6/commit/bfa3b9610c83227894c92b0d312ad327fceb6241
https://github.com/ImageMagick/ImageMagick/issues/1614
https://github.com/ImageMagick/ImageMagick/commit/7689875ef64f34141e7292f6945efdf0530b4a5e
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00069.html