Gentoo: GLSA-202009-16 Normal: LinuxCIFS Shell Injection Threat
gentoo
September 29, 2020
A vulnerability in LinuxCIFS may allow a remote code execution via a command line option.
Summary
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.
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
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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.
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Severity: Normal
Title: LinuxCIFS: Shell injection
Date: September 29, 2020
Bugs: #743211
ID: 202009-16
Background
The LinuxCIFS utils are a collection of tools for managing Linux CIFS
Client Filesystems.
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-fs/cifs-utils < 6.11 >= 6.11
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.
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