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cvelistMitreCVELIST:CVE-2022-40318
HistoryMay 03, 2023 - 12:00 a.m.

CVE-2022-40318

2023-05-0300:00:00
mitre
www.cve.org
bgpd
frrouting
denial of service
bgp open
rfc 9072

6.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

26.1%

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.

6.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

26.1%