Out-of-bounds Read in Frrouting
CVE-2022-43681
An out-of-bounds read exists in the BGP daemon of FRRouting FRR through 8.4. When sending a malformed BGP OPEN message that ends with the option length octet (or the option length word, in case of an extended OPEN message), the FRR code reads of out of the bounds of the packet, throwing a SIGABRT signal and exiting. This results in a bgpd daemon restart, causing a Denial-of-Service condition.
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:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.021 (81.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
- Frrouting
- Debian Linux — versions 10.0, 11.0, 12.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- forescout.com (Third Party Advisory)
- www.debian.org/security/2023/dsa-5495 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/09/msg00020.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-43681?
- CVE-2022-43681 is a medium-severity vulnerability in Frrouting, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2023-05-03.
- How severe is CVE-2022-43681?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2022-43681 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.