Launchpad.net

CVE 2019-11338

libavcodec/hevcdec.c in FFmpeg 4.1.2 mishandles detection of duplicate first slices, which allows remote attackers to cause a denial of service (NULL pointer dereference and out-of-array access) or possibly have unspecified other impact via crafted HEVC data.

See the CVE page on Mitre.org for more details.