CVE-2019-9720 (NVD)

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.

Products Libav
Type Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') (CWE-120)
First patch - None (likely due to unavailable code)
Links https://lgtm.com/security/
https://github.com/libav/libav/blob/df744e3cf66548c9167ea857104a29d2ea92819e/libavcodec/srtdec.c#L161