Buffer overflow in Struktur Libde265
CVE-2020-21600
libde265 v1.0.4 contains a heap buffer overflow in the put_weighted_pred_avg_16_fallback function, which can be exploited via a crafted a file.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.014 (72.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Struktur Libde265 — versions 1.0.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/strukturag/libde265/issues/243 (Exploit, Third Party Advisory, Issue Tracking)
- cwe.mitre.org/data/definitions/122.html (Technical Description)
- www.debian.org/security/2023/dsa-5346 (vendor-advisory)
Frequently asked questions
- What is CVE-2020-21600?
- CVE-2020-21600 is a medium-severity vulnerability in Struktur Libde265, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2021-09-16.
- How severe is CVE-2020-21600?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2020-21600 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.