In ImageMagick 7.0.8-43 Q16, there is a heap-based buffer overflow in the function WriteSGIImage of coders/sgi.c.
https://www.debian.org/security/2020/dsa-4715
https://www.debian.org/security/2020/dsa-4712
https://usn.ubuntu.com/4549-1/
https://lists.debian.org/debian-lts-announce/2019/12/msg00033.html
https://github.com/ImageMagick/ImageMagick/issues/1562
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00006.html