Vulnerability Details : CVE-2021-33815
dwa_uncompress in libavcodec/exr.c in FFmpeg 4.4 allows an out-of-bounds array access because dc_count is not strictly checked.
Products affected by CVE-2021-33815
- cpe:2.3:a:ffmpeg:ffmpeg:4.4:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-33815
0.23%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 61 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-33815
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2021-33815
-
The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-33815
-
https://github.com/FFmpeg/FFmpeg/commit/26d3c81bc5ef2f8c3f09d45eaeacfb4b1139a777
avcodec/exr: More strictly check dc_count · FFmpeg/FFmpeg@26d3c81 · GitHubPatch;Third Party Advisory
-
https://security.gentoo.org/glsa/202312-14
FFmpeg: Multiple Vulnerabilities (GLSA 202312-14) — Gentoo security
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