Vulnerability CVE-2019-9721: Information
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.
Severity: MEDIUM (6.5) Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Fixed packages
Package name | Branch | Fixed in version | Version from repository | Errata ID | Task # | State |
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ffmpeg | sisyphus | 4.1.1-alt1 | 6.1.1-alt3 | ALT-PU-2019-1275-1 | 222302 | Fixed |
ffmpeg | p10 | 4.1.1-alt1 | 4.4.4-alt1 | ALT-PU-2019-1275-1 | 222302 | Fixed |
ffmpeg | p9 | 4.1.1-alt1 | 4.3.6-alt1 | ALT-PU-2019-1275-1 | 222302 | Fixed |
ffmpeg | c10f1 | 4.1.1-alt1 | 4.4.4-alt1 | ALT-PU-2019-1275-1 | 222302 | Fixed |
ffmpeg | c9f2 | 4.1.1-alt1 | 4.3.6-alt1 | ALT-PU-2019-1275-1 | 222302 | Fixed |
ffmpeg | p11 | 4.1.1-alt1 | 6.1.1-alt3 | ALT-PU-2019-1275-1 | 222302 | Fixed |
References to Advisories, Solutions, and Tools
Hyperlink | Resource |
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https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/894995c41e0795c7a44f81adc4838dedc3932e65 |
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107384 |
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USN-3967-1 |
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https://github.com/FFmpeg/FFmpeg/commit/273f2755ce8635d42da3cde0eeba15b2e7842774 |
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