ImageMagick 7.0.8-54 Q16 allows Division by Zero in RemoveDuplicateLayers in MagickCore/layer.c.
lists.opensuse.org/opensuse-security-announce/2019-08/msg00069.html
www.securityfocus.com/bid/109099
github.com/ImageMagick/ImageMagick/commit/1ddcf2e4f28029a888cadef2e757509ef5047ad8
github.com/ImageMagick/ImageMagick/issues/1629
github.com/ImageMagick/ImageMagick6/commit/4f31d78716ac94c85c244efcea368fea202e2ed4
lists.debian.org/debian-lts-announce/2020/08/msg00030.html
usn.ubuntu.com/4192-1/
www.debian.org/security/2020/dsa-4712