Severity: High
Title: LinuxCIFS utils: Multiple Vulnerabilities
Date: November 24, 2023
Bugs: #842234
ID: 202311-05

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Synopsis
=======
Multiple vulnerabilities have been discovered in LinuxCIFS utils, the
worst of which can lead to local root privilege escalation.

Background
=========
The LinuxCIFS utils are a collection of tools for managing Linux CIFS
Client Filesystems.

Affected packages
================
Package Vulnerable Unaffected
----------------- ------------ ------------
net-fs/cifs-utils < 6.15 >= 6.15

Description
==========
Multiple vulnerabilities have been discovered in LinuxCIFS utils. Please
review the CVE identifiers referenced below for details.

Impact
=====
A stack-based buffer overflow when parsing the mount.cifs ip= command-
line argument could lead to local attackers gaining root privileges.

When verbose logging is enabled, invalid credentials file lines may be
dumped to stderr. This may lead to information disclosure in particular
conditions when the credentials file given is sensitive and contains '='
signs.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All LinuxCIFS utils users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-fs/cifs-utils-6.15"

References
=========
[ 1 ] CVE-2022-27239
https://nvd.nist.gov/vuln/detail/CVE-2022-27239
[ 2 ] CVE-2022-29869
https://nvd.nist.gov/vuln/detail/CVE-2022-29869

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202311-05

Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
[email protected] or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
======
Copyright 2023 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5