Buffer overflow in Ffmpeg
CVE-2020-22031
A Heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 at libavfilter/vf_w3fdif.c in filter16_complex_low, which might lead to memory corruption and other potential consequences.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.017 (76.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
- Ffmpeg — versions 4.2
- Debian Linux — versions 9.0, 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- trac.ffmpeg.org/ticket/8243 (Exploit, Issue Tracking, Vendor Advisory)
- trac.ffmpeg.org/attachment/ticket/8243/gdb-vf_w3fdif_191 (Vendor Advisory)
- lists.debian.org/debian-lts-announce/2021/08/msg00018.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2021/dsa-4990 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-22031?
- CVE-2020-22031 is a high-severity vulnerability in Ffmpeg, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2021-05-27.
- How severe is CVE-2020-22031?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-22031 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.