In FFmpeg 3.2 and 4.1, a denial of service in the subtitle decoder allows attackers to hog the CPU via a crafted video file in Matroska format, because ff_htmlmarkup_to_ass in libavcodec/htmlsubtitles.c has a complex format argument to sscanf.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | ffmpeg | < 7:4.1.3-1 | ffmpeg_7:4.1.3-1_all.deb |
Debian | 11 | all | ffmpeg | < 7:4.1.3-1 | ffmpeg_7:4.1.3-1_all.deb |
Debian | 10 | all | ffmpeg | < 7:4.1.3-1 | ffmpeg_7:4.1.3-1_all.deb |
Debian | 999 | all | ffmpeg | < 7:4.1.3-1 | ffmpeg_7:4.1.3-1_all.deb |
Debian | 13 | all | ffmpeg | < 7:4.1.3-1 | ffmpeg_7:4.1.3-1_all.deb |