Note:
This project will be discontinued after December 13, 2021. [more]
2019-09-19
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
Products | Libav |
Type | Out-of-bounds Write (CWE-787) |
First patch | - None (likely due to unavailable code) |
Links |
• https://github.com/libav/libav/commits/master/libavcodec/srtdec.c
• https://lgtm.com/security/ • https://github.com/libav/libav/blob/df744e3cf66548c9167ea857104a29d2ea92819e/libavcodec/srtdec.c#L113 • https://lgtm.com/projects/g/libav/libav/snapshot/f5f553ca3bdca0c97dd08bbf002f0d8cb193788b/files/libavcodec/srtdec.c?sort=name&dir=ASC&mode=heatmap#xeec693aa6d85853b:1 |