CVE-2022-41974

Publication date 24 October 2022

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

multipath-tools 0.7.0 through 0.9.x before 0.9.2 allows local users to obtain root access, as exploited alone or in conjunction with CVE-2022-41973. Local users able to write to UNIX domain sockets can bypass access controls and manipulate the multipath setup. This can lead to local privilege escalation to root. This occurs because an attacker can repeat a keyword, which is mishandled because arithmetic ADD is used instead of bitwise OR.

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	Fixed 0.7.4-2ubuntu3.2
	16.04 LTS xenial	Ignored
	14.04 LTS trusty	Ignored

Notes

alexmurray

introduced in version 0.7.0 via commit 9acda0c but earlier versions do no authorization checks at all and are then technically also vulnerable

rodrigo-zaiden

earlier versions are not getting a code fix for this and applying one without upstream support does not seem feasible and can add too much risks.

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: f812466

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