Published: 12/03/2019 Updated: 07/10/2022

CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6

CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8

VMScore: 383

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

A denial of service in the subtitle decoder in FFmpeg 3.2 and 4.1 allows malicious users 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.

Vulnerable Product	Search on Vulmon	Subscribe to Product
ffmpeg ffmpeg 3.2
ffmpeg ffmpeg 4.1
canonical ubuntu linux 18.04
canonical ubuntu linux 18.10
canonical ubuntu linux 19.04

Debian Bug report logs - #926666 CVE-2019-9718 CVE-2019-9721 Package: ffmpeg; Maintainer for ffmpeg is Debian Multimedia Maintainers <debian-multimedia@listsdebianorg>; Source for ffmpeg is src:ffmpeg (PTS, buildd, popcon) Reported by: Moritz Muehlenhoff <jmm@debianorg> Date: Mon, 8 Apr 2019 18:33:07 UTC Severit ...

FFmpeg could be made to crash if it opened a specially crafted file ...

CWE-125 https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/894995c41e0795c7a44f81adc4838dedc3932e65 http://www.securityfocus.com/bid/107384 https://usn.ubuntu.com/3967-1/https://github.com/FFmpeg/FFmpeg/commit/273f2755ce8635d42da3cde0eeba15b2e7842774 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=926666 https://usn.ubuntu.com/3967-1/https://nvd.nist.gov

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CVE-2019-9721

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