Vulnerability Details : CVE-2022-40318
An issue was discovered in bgpd in FRRouting (FRR) through 8.4. By crafting a BGP OPEN message with an option of type 0xff (Extended Length from RFC 9072), attackers may cause a denial of service (assertion failure and daemon restart, or out-of-bounds read). This is possible because of inconsistent boundary checks that do not account for reading 3 bytes (instead of 2) in this 0xff case. NOTE: this behavior occurs in bgp_open_option_parse in the bgp_open.c file, a different location (with a different attack vector) relative to CVE-2022-40302.
Vulnerability category: Denial of service
Products affected by CVE-2022-40318
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
- cpe:2.3:a:frrouting:frrouting:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-40318
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 31 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-40318
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2022-40318
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-40318
-
https://github.com/FRRouting/frr/releases
Releases · FRRouting/frr · GitHubThird Party Advisory
-
https://www.debian.org/security/2023/dsa-5495
Debian -- Security Information -- DSA-5495-1 frrThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2023/09/msg00020.html
[SECURITY] [DLA 3573-1] frr security updateMailing List;Third Party Advisory
Jump to