In ImageMagick 7.0.6-6, a memory exhaustion vulnerability was found in the function ReadTIFFImage, which allows attackers to cause a denial of service.
lists.opensuse.org/opensuse-security-announce/2019-07/msg00001.html
github.com/ImageMagick/ImageMagick/issues/664
lists.debian.org/debian-lts-announce/2020/08/msg00030.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PF62B5PJA2JDUOCKJGUQO3SPL74BEYSV/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WHIKB4TP6KBJWT2UIPWL5MWMG5QXKGEJ/
usn.ubuntu.com/4034-1/