Buffer overflow in Lldpd Project
CVE-2021-43612
In lldpd before 1.0.13, when decoding SONMP packets in the sonmp_decode function, it's possible to trigger an out-of-bounds heap read via short SONMP packets.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.011 (65.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Lldpd Project
- Fedoraproject Fedora — versions 36, 37, 38
Weakness classification (CWE)
References
- lldpd.github.io/security.html (Patch, Third Party Advisory)
- github.com/lldpd/lldpd/commit/73d42680fce8598324364dbb31b9bc3b8320adf7 (Patch)
- github.com/lldpd/lldpd/compare/1.0.12...1.0.13 (Patch, Release Notes)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2021-43612?
- CVE-2021-43612 is a high-severity vulnerability in Lldpd Project, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2023-04-15.
- How severe is CVE-2021-43612?
- High severity. CVSS v3 base score is 7.5 out of 10.