Vulnerability Description
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
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Libav | Libav | <= 12.3 |
Related Weaknesses (CWE)
References
- https://github.com/libav/libav/blob/df744e3cf66548c9167ea857104a29d2ea92819e/libExploitThird Party Advisory
- https://github.com/libav/libav/commits/master/libavcodec/srtdec.cThird Party Advisory
- https://lgtm.com/projects/g/libav/libav/snapshot/f5f553ca3bdca0c97dd08bbf002f0d8ExploitThird Party Advisory
- https://lgtm.com/security/Third Party Advisory
- https://github.com/libav/libav/blob/df744e3cf66548c9167ea857104a29d2ea92819e/libExploitThird Party Advisory
- https://github.com/libav/libav/commits/master/libavcodec/srtdec.cThird Party Advisory
- https://lgtm.com/projects/g/libav/libav/snapshot/f5f553ca3bdca0c97dd08bbf002f0d8ExploitThird Party Advisory
- https://lgtm.com/security/Third Party Advisory
FAQ
What is CVE-2019-9719?
CVE-2019-9719 is a vulnerability with a CVSS score of 8.8 (HIGH). 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...
How severe is CVE-2019-9719?
CVE-2019-9719 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-9719?
Check the references section above for vendor advisories and patch information. Affected products include: Libav Libav.