CVE-2020-12284
9.8
CRITICAL · CVSS 3.1 · EPSS 3.9% (pctl 90)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
cbs_jpeg_split_fragment in libavcodec/cbs_jpeg.c in FFmpeg 4.1 and 4.2.2 has a heap-based buffer overflow during JPEG_MARKER_SOS handling because of a missing length check.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.85% — more likely to be exploited than 90% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2020-04-28 |
| Last modified | 2026-06-17 |
Affected (3)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| debian | debian linux |
| ffmpeg | ffmpeg |
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19734
- https://github.com/FFmpeg/FFmpeg/commit/1812352d767ccf5431aa440123e2e260a4db2726
- https://github.com/FFmpeg/FFmpeg/commit/a3a3730b5456ca00587455004d40c047f7b20a99
- https://security.gentoo.org/glsa/202007-58
- https://usn.ubuntu.com/4431-1/
- https://www.debian.org/security/2020/dsa-4722
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19734
- https://github.com/FFmpeg/FFmpeg/commit/1812352d767ccf5431aa440123e2e260a4db2726
- https://github.com/FFmpeg/FFmpeg/commit/a3a3730b5456ca00587455004d40c047f7b20a99
- https://security.gentoo.org/glsa/202007-58
- https://usn.ubuntu.com/4431-1/
- https://www.debian.org/security/2020/dsa-4722
→ the Explorer · watch your stack · NVD