CVE-2022-40302

State: Published
Severity: 6.5 Medium
Published: May 3, 2023
Updated: Jan 30, 2025
Reserved: Sep 9, 2022

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://github.com/FRRouting/frr/releases
DSA-5495vendor-advisory
[debian-lts-announce] 20230919 [SECURITY] [DLA 3573-1] frr security updatemailing-list

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