CVE-2019-9717

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

In Libav 12.3, a denial of service in the subtitle decoder allows attackers to hog the CPU via a crafted video file in Matroska format, because srt_to_ass in libavcodec/srtdec.c has a complex format argument to sscanf.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-400

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/libav/libav/blob/df744e3cf66548c9167ea857104a29d2ea92819e/libavcodec/srtdec.c#L90Exploit, Third Party Advisory
https://lgtm.com/security/Third Party Advisory
https://github.com/libav/libav/blob/df744e3cf66548c9167ea857104a29d2ea92819e/libavcodec/srtdec.c#L90Exploit, Third Party Advisory
https://lgtm.com/security/Third Party Advisory

Timeline

Published: Sep 19, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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