EPSS
Percentile
73.9%
ffmpeg is vulnerable to denial of service. An attacker is able to cause excessive CPU consumption via a malicious video file in Matroska format as the ff_htmlmarkup_to_ass in libavcodec/htmlsubtitles.c has a complex format argument to sscanf.
ff_htmlmarkup_to_ass
libavcodec/htmlsubtitles.c
www.securityfocus.com/bid/107382
git.ffmpeg.org/gitweb/ffmpeg.git/commit/1f00c97bc3475c477f3c468cf2d924d5761d0982
github.com/FFmpeg/FFmpeg/commit/23ccf3cabb4baf6e8af4b1af3fcc59c904736f21
seclists.org/bugtraq/2019/May/60
usn.ubuntu.com/3967-1/
www.debian.org/security/2019/dsa-4449