The XWD image (X Window System window dumping file) parsing component in ImageMagick 7.0.8-41 Q16 allows attackers to cause a denial-of-service (application crash resulting from an out-of-bounds Read) in ReadXWDImage in coders/xwd.c by crafting a corrupted XWD image file, a different vulnerability than CVE-2019-11472.
https://www.debian.org/security/2020/dsa-4712
https://usn.ubuntu.com/4192-1/
https://lists.debian.org/debian-lts-announce/2020/09/msg00007.html
https://lists.debian.org/debian-lts-announce/2019/10/msg00028.html
https://github.com/ImageMagick/ImageMagick/issues/1553
https://github.com/ImageMagick/ImageMagick/commit/c78993d138bf480ab4652b5a48379d4ff75ba5f7
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00042.html
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00040.html