In OpenEXR 2.2.0, an invalid write of size 2 in the = operator function in half.h could cause the application to crash or execute arbitrary code.
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00060.html
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00000.html
https://github.com/openexr/openexr/issues/232
https://github.com/openexr/openexr/pull/233
https://github.com/openexr/openexr/releases/tag/v2.2.1
https://lists.debian.org/debian-lts-announce/2020/08/msg00056.html
https://usn.ubuntu.com/4148-1/
https://usn.ubuntu.com/4339-1/