Libde265 v1.0.8 was discovered to contain a heap-buffer-overflow vulnerability via put_qpel_fallback<unsigned short> in fallback-motion.cc. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted video file.
https://www.debian.org/security/2023/dsa-5346
https://lists.debian.org/debian-lts-announce/2023/01/msg00020.html