CVE-2019-9721
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductFfmpeg
PublishedMar 12, 2019
First seenMar 12, 2019
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ffmpeg ffmpeg | 3.2, 4.1 | — |
| canonical ubuntu_linux | 18.04, 18.10, 19.04 | — |
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