CVE-2020-14342

Publication date 9 September 2020

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

It was found that cifs-utils' mount.cifs was invoking a shell when requesting the Samba password, which could be used to inject arbitrary commands. An attacker able to invoke mount.cifs with special permission, such as via sudo rules, could use this flaw to escalate their privileges.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
cifs-utils	24.04 LTS noble	Fixed 2:6.11-0ubuntu1
	23.10 mantic	Fixed 2:6.11-0ubuntu1
	23.04 lunar	Fixed 2:6.11-0ubuntu1
	22.10 kinetic	Fixed 2:6.11-0ubuntu1
	22.04 LTS jammy	Fixed 2:6.11-0ubuntu1
	21.10 impish	Fixed 2:6.11-0ubuntu1
	21.04 hirsute	Fixed 2:6.11-0ubuntu1
	20.10 groovy	Fixed 2:6.11-0ubuntu1
	20.04 LTS focal	Fixed 2:6.9-1ubuntu0.2
	18.04 LTS bionic	Fixed 2:6.8-1ubuntu1.2
	16.04 LTS xenial	Vulnerable
	14.04 LTS trusty	Vulnerable

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=commit;h=48a654e2e763fce24c22e1b9c695b42804bbdd4a

Severity score breakdown

Parameter	Value
Base score	7.0 · High
Attack vector	Local
Attack complexity	High
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-5459-1
cifs-utils vulnerabilities
2 June 2022