Medium severity6.5NVD Advisory· Published Mar 12, 2019· Updated Jun 17, 2026
CVE-2019-9721
CVE-2019-9721
Description
A denial of service in the subtitle decoder in FFmpeg 3.2 and 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
27cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*+ 2 more
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
- osv-coords20 versionspkg:rpm/opensuse/ffmpeg&distro=openSUSE%20Leap%2015.3pkg:rpm/suse/ffmpeg&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/ffmpeg&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/ffmpeg&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/ffmpeg&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/ffmpeg&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/ffmpeg&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP2pkg:rpm/suse/ffmpeg&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP3pkg:rpm/suse/ffmpeg&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP2pkg:rpm/suse/ffmpeg&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP3pkg:rpm/suse/ffmpeg&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/ffmpeg&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/ffmpeg&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/ffmpeg&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/ffmpeg&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/ffmpeg&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP2pkg:rpm/suse/ffmpeg&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP3pkg:rpm/suse/ffmpeg&distro=SUSE%20Manager%20Proxy%204.0pkg:rpm/suse/ffmpeg&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0pkg:rpm/suse/ffmpeg&distro=SUSE%20Manager%20Server%204.0
< 3.4.2-11.8.2+ 19 more
- (no CPE)range: < 3.4.2-11.8.2
- (no CPE)range: < 3.4.2-4.34.2
- (no CPE)range: < 3.4.2-4.34.2
- (no CPE)range: < 3.4.2-4.34.2
- (no CPE)range: < 3.4.2-4.34.2
- (no CPE)range: < 3.4.2-4.34.2
- (no CPE)range: < 3.4.2-11.8.2
- (no CPE)range: < 3.4.2-11.8.2
- (no CPE)range: < 3.4.2-11.8.2
- (no CPE)range: < 3.4.2-11.8.2
- (no CPE)range: < 3.4.2-4.34.2
- (no CPE)range: < 3.4.2-4.34.2
- (no CPE)range: < 3.4.2-4.34.2
- (no CPE)range: < 3.4.2-4.34.2
- (no CPE)range: < 3.4.2-4.34.2
- (no CPE)range: < 3.4.2-11.8.2
- (no CPE)range: < 3.4.2-11.8.2
- (no CPE)range: < 3.4.2-4.34.2
- (no CPE)range: < 3.4.2-4.34.2
- (no CPE)range: < 3.4.2-4.34.2
Patches
Vulnerability mechanics
References
4- git.ffmpeg.org/gitweb/ffmpeg.git/commit/894995c41e0795c7a44f81adc4838dedc3932e65nvdMailing ListPatchThird Party Advisory
- github.com/FFmpeg/FFmpeg/commit/273f2755ce8635d42da3cde0eeba15b2e7842774nvdPatchThird Party Advisory
- usn.ubuntu.com/3967-1/nvdThird Party Advisory
- www.securityfocus.com/bid/107384nvdBroken Link
News mentions
0No linked articles in our index yet.