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Medium severity6.5NVD Advisory· Published May 3, 2023· Updated Jun 17, 2026

CVE-2022-40318

CVE-2022-40318

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

8
  • Frrouting/Frrouting
    cpe:2.3:a:frrouting:frrouting:*:*:*:*:*:*:*:*
    Range: <=8.4
  • Debian/linux3 versions
    cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*+ 2 more
    • 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:*:*:*:*:*:*:*
  • Frrouting/Frrcpe-rescue2 versions
    (expand)+ 1 more
    • (no CPE)
    • (no CPE)range: <=8.4
  • osv-coords2 versions
    pkg:rpm/almalinux/frrpkg:rpm/almalinux/frr-selinux
    < 8.3.1-11.el9_3.alma.1+ 1 more
    • (no CPE)range: < 8.3.1-11.el9_3.alma.1
    • (no CPE)range: < 8.3.1-11.el9_3.alma.1

Patches

Vulnerability mechanics

References

3

News mentions

0

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