In OpenEXR 2.2.0, an invalid read of size 1 in the refill function in ImfFastHuf.cpp could cause the application to crash.
https://www.debian.org/security/2020/dsa-4755
https://lists.debian.org/debian-lts-announce/2020/08/msg00056.html
https://github.com/openexr/openexr/releases/tag/v2.2.1
https://github.com/openexr/openexr/pull/233