There is an Assertion `scaling_list_pred_matrix_id_delta==1' failed at sps.cc:925 in libde265 v1.0.8 when decoding file, which allows attackers to cause a Denial of Service (DoS) by running the application with a crafted file or possibly have unspecified other impact.
https://www.debian.org/security/2023/dsa-5346
https://lists.debian.org/debian-lts-announce/2022/12/msg00027.html