Name | CVE-2019-9718 |
Description | 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. |
Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
References | DSA-4449-1 |
Debian Bugs | 926666 |
The table below lists information on source packages.
Source Package | Release | Version | Status |
---|---|---|---|
ffmpeg (PTS) | bullseye | 7:4.3.7-0+deb11u1 | fixed |
bullseye (security) | 7:4.3.9-0+deb11u1 | fixed | |
bookworm, bookworm (security) | 7:5.1.7-0+deb12u1 | fixed | |
forky, sid, trixie | 7:7.1.1-1 | fixed |
The information below is based on the following data on fixed versions.
Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
---|---|---|---|---|---|---|
ffmpeg | source | stretch | 7:3.2.14-1~deb9u1 | DSA-4449-1 | ||
ffmpeg | source | (unstable) | 7:4.1.3-1 | low | 926666 | |
libav | source | jessie | (not affected) | |||
libav | source | (unstable) | (unfixed) |
https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/1f00c97bc3475c477f3c468cf2d924d5761d0982
[jessie] - libav <not-affected> (Vulnerable code not present)