CVE-2019-9719

A stack-based buffer overflow in the subtitle decoder in Libav 12.3 allows attackers to corrupt the stack via a crafted video file in Matroska format, because srt_to_ass in libavcodec/srtdec.c misuses snprintf. NOTE: Third parties dispute that this is a vulnerability because “no evidence of a vulnerability is provided” and only “a generic warning from a static code analysis” is provided

Score

CVSS 3.1 8.8 High

Status

Modified - cve@mitre.org

Published

2019-09-19

Last modified

2024-08-04

Weaknesses

CWE-787

Affected products

• Libav (Libav)

References

• https://github.com/libav/libav/blob/df744e3cf66548c9167ea857104a29d2ea92819e/libavcodec/srtdec.c#L113
• https://github.com/libav/libav/commits/master/libavcodec/srtdec.c
• https://lgtm.com/projects/g/libav/libav/snapshot/f5f553ca3bdca0c97dd08bbf002f0d8cb193788b/files/libavcodec/srtdec.c?sor…
• https://lgtm.com/security/