CVE-2019-9721

Priority
Description
A denial of service in the subtitle decoder in FFmpeg 4.1 allows attackers
to hog the CPU via a crafted video file in Matroska format, because
handle_open_brace in libavcodec/htmlsubtitles.c has a complex format
argument to sscanf.
Notes
Package
Upstream:needs-triage
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 14.04 ESM (Trusty Tahr):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (code not present)
Ubuntu 18.04 LTS (Bionic Beaver):released (7:3.4.6-0ubuntu0.18.04.1)
More Information

Updated: 2020-07-28 20:07:58 UTC (commit d26b6ca9f5b3adb89bb036ce73ae7dab894935ec)