Vulnerability Database

290,020

Total vulnerabilities in the database

CVE-2019-9721

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.

  • Published: Mar 12, 2019
  • Updated: Apr 13, 2023
  • CVE: CVE-2019-9721
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.5
  • AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: Low
  • Score: 4.3
  • AV:N/AC:M/Au:N/C:N/I:N/A:P

CWEs:

Software From Fixed in
ffmpeg / ffmpeg 3.2 3.2.x
ffmpeg / ffmpeg 4.1 4.1.x
canonical / ubuntu_linux 18.04 18.04.x
canonical / ubuntu_linux 18.10 18.10.x
canonical / ubuntu_linux 19.04 19.04.x