ImageMagick is vulnerable to memory leaks. The attacker can send a malicious image to the function WritePNMImage of coders/pnm, causing a heap-based buffer over-read.
lists.opensuse.org/opensuse-security-announce/2019-06/msg00057.html
lists.opensuse.org/opensuse-security-announce/2019-07/msg00001.html
www.securityfocus.com/bid/108102
access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.8_release_notes/index
access.redhat.com/errata/RHSA-2020:1180
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=1743658
bugzilla.redhat.com/show_bug.cgi?id=1764595
bugzilla.redhat.com/show_bug.cgi?id=1765205
bugzilla.redhat.com/show_bug.cgi?id=1765208
bugzilla.redhat.com/show_bug.cgi?id=1765211
github.com/ImageMagick/ImageMagick/issues/1540
lists.debian.org/debian-lts-announce/2019/05/msg00015.html
lists.debian.org/debian-lts-announce/2020/09/msg00007.html
usn.ubuntu.com/4034-1/
www.debian.org/security/2020/dsa-4712