There is a flaw in OpenEXR in versions before 3.0.0-beta. An attacker who can submit a crafted file to be processed by OpenEXR could cause an integer overflow, potentially leading to problems with application availability.
https://security.gentoo.org/glsa/202107-27
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html
https://lists.debian.org/debian-lts-announce/2021/07/msg00001.html