ImageMagick 7.0.8-34 has a memory leak in the ReadPCLImage function in coders/pcl.c.
https://www.debian.org/security/2020/dsa-4712
https://usn.ubuntu.com/4192-1/
https://github.com/ImageMagick/ImageMagick/issues/1520
http://www.securityfocus.com/bid/108913
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00069.html