CVE-2019-9721

ffmpeg: complex format argument in handle_open_brace in libavcodec/htmlsubtitles.c causing denial of service

Published Mar 12, 2019 CVSS 3.1 · 6.5 Medium EPSS 1.4% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2019-19086 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.
Ubuntu USN Ubuntu USN USN-3967-1 FFmpeg vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 4, 2024, 10:01 PM
Reserved
Mar 12, 2019, 12:00 AM
Status
Modified
Published
Mar 12, 2019, 9:29 AM
Modified
Jun 17, 2026, 2:44 AM
Severity
Low
Public date
Mar 12, 2019, 12:00 AM