Buffer overflow in Struktur Libde265
CVE-2020-21596
libde265 v1.0.4 contains a global buffer overflow in the decode_CABAC_bit 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: 0.015 (73.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Struktur Libde265 — versions 1.0.4
- Debian Linux — versions 10.0, 11.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/strukturag/libde265/issues/236 (Exploit, Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2023/01/msg00020.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2023/dsa-5346 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-21596?
- CVE-2020-21596 is a medium-severity vulnerability in Struktur Libde265, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2021-09-16.
- How severe is CVE-2020-21596?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2020-21596 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.