GraphicsMagick attraverso 1.3.35 ha un buffer overflow basati in ReadMNGImage in codificatori / png.c.
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19025
https://lists.debian.org/debian-lts-announce/2020/06/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00008.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00012.html
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12672