A flaw was found in the opj2_decompress program in openjpeg2 2.4.0 in the way it handles an input directory with a large number of files. When it fails to allocate a buffer to store the filenames of the input directory, it calls free() on an uninitialized pointer, leading to a segmentation fault and a denial of service.
https://security.gentoo.org/glsa/202209-04
https://lists.debian.org/debian-lts-announce/2022/04/msg00006.html