VDB
CVE-2020-21688
CVE-2020-21688
PUBLISHED
A heap-use-after-free in the av_freep function in libavutil/mem.c of FFmpeg 4.2 allows attackers to execute arbitrary code.
EPSS 0.30% · 53.9th percentile
Risk Scores
EPSS Score
0.30%
53.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | qtwebengine-opensource-src | *, *, 5.12.8+dfsg-0ubuntu1 |
| Ubuntu:20.04:LTS | ffmpeg | 7:4.2.2-1ubuntu1, 7:4.2.2-1build1, 7:4.2.1-2ubuntu1 |
| Ubuntu:24.04:LTS | qtwebengine-opensource-src | 5.15.15+dfsg-2build2, 5.15.15+dfsg-2ubuntu1, 5.15.16+dfsg-1ubuntu2 |
| Ubuntu:18.04:LTS | ffmpeg | *, 7:3.4-4, 7:3.4-4build1 |
| Ubuntu:18.04:LTS | qtwebengine-opensource-src | 5.9.2+dfsg-2ubuntu1, 5.9.3+dfsg-0ubuntu1, 5.9.4+dfsg-0ubuntu1 |
| Ubuntu:25.10 | qtwebengine-opensource-src | *, *, 0 |
| Ubuntu:Pro:16.04:LTS | ffmpeg | 0, *, * |
| Ubuntu:22.04:LTS | qtwebengine-opensource-src | 0, 5.15.6+dfsg-2, 5.15.7+dfsg-2 |
Timeline
- Aug 10, 2021 CVE Published
- Aug 11, 2021 EPSS Score
- Oct 9, 2021 EPSS Score
- Dec 6, 2021 EPSS Score
- Feb 3, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Apr 2, 2022 EPSS Score
- May 31, 2022 EPSS Score
- Sep 26, 2022 EPSS Score
- Nov 24, 2022 EPSS Score
- Jan 22, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-21688 third-party-advisory
- https://trac.ffmpeg.org/ticket/8186 third-party-advisory
- https://ubuntu.com/security/notices/USN-5472-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-5167-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-21688 third-party-advisory