CVE-2019-9719: Buffer Overflow
DISPUTED 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 srttoass 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2019-9719?
The severity of CVE-2019-9719 is currently disputed, with some claiming it does not constitute a vulnerability due to lack of evidence of exploitability.
How do I fix CVE-2019-9719?
To address CVE-2019-9719, it is recommended to upgrade to a newer version of Libav beyond 12.3 where this issue is resolved.
What product versions are affected by CVE-2019-9719?
CVE-2019-9719 affects Libav versions up to and including 12.3.
What type of attack can exploit CVE-2019-9719?
CVE-2019-9719 can potentially be exploited by attackers through a crafted video file in Matroska format that triggers a stack-based buffer overflow.
What component of Libav is involved in CVE-2019-9719?
The subtitle decoder component in Libav is involved in CVE-2019-9719, specifically the srt_to_ass function in the srtdec.c file.