Vulnerability · Published Jun 3, 2021 · Assigned by mitre
CVE-2021-33815
High 8.8
In plain English
A high-severity security flaw in the ffmpeg package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.4%top 28.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
dwa_uncompress in libavcodec/exr.c in FFmpeg 4.4 allows an out-of-bounds array access because dc_count is not strictly checked.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | ffmpeg | 4.4-r1 | ALPINE-CVE-2021-33815 |
| Alpine:v3.21 | ffmpeg | 4.4-r1 | ALPINE-CVE-2021-33815 |
| Alpine:v3.22 | ffmpeg | 4.4-r1 | ALPINE-CVE-2021-33815 |
| Alpine:v3.23 | ffmpeg | 4.4-r1 | ALPINE-CVE-2021-33815 |
| Alpine:v3.24 | ffmpeg | 4.4-r1 | ALPINE-CVE-2021-33815 |
| Alpine:v3.20 | ffmpeg4 | 4.4-r1 | ALPINE-CVE-2021-33815 |
| Alpine:v3.21 | ffmpeg4 | 4.4-r1 | ALPINE-CVE-2021-33815 |
| Alpine:v3.22 | ffmpeg4 | 4.4-r1 | ALPINE-CVE-2021-33815 |
| Ubuntu:22.04:LTS | ffmpeg | 7:4.4.1-3ubuntu2 | UBUNTU-CVE-2021-33815 |