Vulnerability Details : CVE-2019-9720
Potential exploit
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.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2019-9720
- cpe:2.3:a:libav:libav:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-9720
0.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 48 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-9720
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.1
|
HIGH | AV:N/AC:M/Au:N/C:N/I:N/A:C |
8.6
|
6.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2019-9720
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-9720
-
https://lgtm.com/security/
Security Research and CVEs discovered by Semmle - LGTMThird Party Advisory
-
https://github.com/libav/libav/blob/df744e3cf66548c9167ea857104a29d2ea92819e/libavcodec/srtdec.c#L161
libav/srtdec.c at df744e3cf66548c9167ea857104a29d2ea92819e · libav/libav · GitHubExploit;Third Party Advisory
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