CVE-2022-41973

Publication date 24 October 2022

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

multipath-tools 0.7.7 through 0.9.x before 0.9.2 allows local users to obtain root access, as exploited in conjunction with CVE-2022-41974. Local users able to access /dev/shm can change symlinks in multipathd due to incorrect symlink handling, which could lead to controlled file writes outside of the /dev/shm directory. This could be used indirectly for local privilege escalation to root.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
multipath-tools	22.10 kinetic	Fixed 0.8.8-1ubuntu1.22.10.1
	22.04 LTS jammy	Fixed 0.8.8-1ubuntu1.22.04.1
	20.04 LTS focal	Fixed 0.8.3-1ubuntu2.1
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Notes

alexmurray

introduced in version 0.7.7 via commit 65d0a63

Patch details

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

Package	Patch details
multipath-tools	Upstream: cb57b93

Severity score breakdown

Parameter	Value
Base score	7.8 · High
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-5731-1
multipath-tools vulnerabilities
17 November 2022