CVE catalog

CVE-2022-43681

frr: CVE-2022-43681

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: 2.13% · Oct 25, 2026

An out-of-bounds read exists in the BGP daemon of FRRouting FRR through 8.4. When sending a malformed BGP OPEN message that ends with the option length octet (or the option length word, in case of an extended OPEN message), the FRR code reads of out of the bounds of the packet, throwing a SIGABRT signal and exiting. This results in a bgpd daemon restart, causing a Denial-of-Service condition.

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, 6:30:19 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]