In ImageMagick 7.0.8-43 Q16, there is a heap-based buffer over-read in the function WriteTIFFImage of coders/tiff.c, which allows an attacker to cause a denial of service or possibly information disclosure via a crafted image file.
https://www.debian.org/security/2020/dsa-4712
https://usn.ubuntu.com/4034-1/
https://lists.debian.org/debian-lts-announce/2020/08/msg00030.html
https://lists.debian.org/debian-lts-announce/2019/05/msg00015.html
https://github.com/ImageMagick/ImageMagick/issues/1555
http://www.securityfocus.com/bid/108102
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00043.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00001.html