CVE catalog

CVE-2022-40318

frr: CVE-2022-40318

Severity: Medium · CVSS 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Published: May 3, 2023, 12:16:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.98% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	frr	sid	`10.7.1-6`	fixed
Debian	frr	forky	`10.7.1-6`	fixed
Debian	frr	trixie	`10.3-3+deb13u1`	fixed
Debian	frr	trixie-security	`10.3-3+deb13u1`	fixed
Debian	frr	bookworm	`8.4.4-1.1~deb12u2`	fixed
Debian	frr	bookworm-security	`8.4.4-1.1~deb12u2`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	frr	source	sid	`8.4.1-1`	not yet assigned	Not reported	[1035829]
Debian	frr	source	forky	`8.4.1-1`	not yet assigned	Not reported	[1035829]
Debian	frr	source	trixie	`8.4.1-1`	not yet assigned	Not reported	[1035829]
Debian	frr	source	bookworm	`8.4.1-1`	not yet assigned	Not reported	[1035829]

[Debian bug #1035829]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[frr]Unknown
Details (4)
- 8.4.4-1.1~deb12u2 · amd64 · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · arm64 · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
[frr-doc]Unknown
Source package: [frr]
Details (4)
- 8.4.4-1.1~deb12u2 · all · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · all · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · all · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · all · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
[frr-pythontools]Unknown
Source package: [frr]
Details (4)
- 8.4.4-1.1~deb12u2 · all · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · all · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · all · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · all · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
[frr-rpki-rtrlib]Unknown
Source package: [frr]
Details (4)
- 8.4.4-1.1~deb12u2 · amd64 · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · arm64 · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
[frr-snmp]Unknown
Source package: [frr]
Details (4)
- 8.4.4-1.1~deb12u2 · amd64 · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · arm64 · bookworm
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · amd64 · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm
- 8.4.4-1.1~deb12u2 · arm64 · bookworm-security
  Fixed · Fixed: 8.4.1-1
  dsa · frr · debian · bookworm

Observed: Oct 23, 2026, 6:29:41 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]