CVE-2022-26127

Publication date 3 March 2022

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A buffer overflow vulnerability exists in FRRouting through 8.1.0 due to missing a check on the input packet length in the babel_packet_examin function in babeld/message.c.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
frr	25.04 plucky	Fixed 8.1-1ubuntu1
	24.10 oracular	Fixed 8.1-1ubuntu1
	24.04 LTS noble	Fixed 8.1-1ubuntu1
	23.10 mantic	Fixed 8.1-1ubuntu1
	23.04 lunar	Fixed 8.1-1ubuntu1
	22.10 kinetic	Fixed 8.1-1ubuntu1
	22.04 LTS jammy	Fixed 8.1-1ubuntu1
	21.10 impish	Ignored end of life
	20.04 LTS focal	Fixed 7.2.1-1ubuntu0.2+esm2
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
frr	Upstream: 50044ec

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.8 · High

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	7.8 · High
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-6807-1
FRR vulnerabilities
5 June 2024

Other references

https://www.cve.org/CVERecord?id=CVE-2022-26127