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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2019-9721 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://www.securityfocus.com/bid/107384 CVE, MITRE Broken Link 
https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/894995c41e0795c7a44f81adc4838dedc3932e65 CVE, MITRE Mailing List  Patch  Third Party Advisory 
https://github.com/FFmpeg/FFmpeg/commit/273f2755ce8635d42da3cde0eeba15b2e7842774 CVE, MITRE Patch  Third Party Advisory 
https://usn.ubuntu.com/3967-1/ CVE, MITRE Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-125 Out-of-bounds Read cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

9 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-9721
NVD Published Date:
03/12/2019
NVD Last Modified:
06/16/2026
Source:
MITRE