Home / mailings [gentoo-announce] [ GLSA 202009-16 ] LinuxCIFS: Shell injection
Posted on 29 September 2020
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Gentoo Linux Security Advisory GLSA 202009-16
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https://security.gentoo.org/
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Severity: Normal
Title: LinuxCIFS: Shell injection
Date: September 29, 2020
Bugs: #743211
ID: 202009-16
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Synopsis
========
A vulnerability in LinuxCIFS may allow a remote code execution via a
command line option.
Background
==========
The LinuxCIFS utils are a collection of tools for managing Linux CIFS
Client Filesystems.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-fs/cifs-utils < 6.11 >= 6.11
Description
===========
The mount.cifs utility had a shell injection issue where one can embed
shell commands via the username mount option. Those commands will be
run via popen() in the context of the user calling mount.
Impact
======
A remote attacker could entice a user to use a specially crafted
argument using mount.cifs, possibly resulting in execution of arbitrary
code with the privileges of the process or a Denial of Service
condition.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All LinuxCIFS users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-fs/cifs-utils-6.11"
References
==========
[ 1 ] CVE-2020-14342
https://nvd.nist.gov/vuln/detail/CVE-2020-14342
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202009-16
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
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.
License
=======
Copyright 2020 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
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