CVE-2022-27239

Publication date 27 April 2022

Last updated 7 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

In cifs-utils through 6.14, a stack-based buffer overflow when parsing the mount.cifs ip= command-line argument could lead to local attackers gaining root privileges.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
cifs-utils	25.04 plucky	Not affected
	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Fixed 2:6.14-1ubuntu0.1
	21.10 impish	Fixed 2:6.11-3.1ubuntu0.1
	20.04 LTS focal	Fixed 2:6.9-1ubuntu0.2
	18.04 LTS bionic	Fixed 2:6.8-1ubuntu1.2
	16.04 LTS xenial	Fixed 2:6.4-1ubuntu1.1+esm1
	14.04 LTS trusty	Fixed 2:6.0-1ubuntu2+esm1

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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
cifs-utils	Upstream: https://git.samba.org/cifs-utils.git/?p=cifs-utils.git;a=patch;h=007c07fd91b6d42f8bd45187cf78ebb06801139d

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