CVEvulnerability

CVE-2022-40318

6.5 MEDIUM Published 2023-05-03 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-05-03
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-125

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. 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.

Affected configurations

• frrouting frrouting (<= 8.4) • debian debian linux 10.0 • debian debian linux 11.0 • debian debian linux 12.0

Related

Weakness · CWE (1)

  • CWE-125 Out-of-bounds Read weakness

References