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Gentoo Linux Security Advisory 201709-17

Gentoo Linux Security Advisory 201709-17
Posted Sep 25, 2017
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201709-17 - A command injection vulnerability in CVS may allow remote attackers to execute arbitrary code. Versions less than 1.12.12-r12 are affected.

tags | advisory, remote, arbitrary
systems | linux, gentoo
advisories | CVE-2017-12836
MD5 | 171398e6faeace9a376cb8e0553dd671

Gentoo Linux Security Advisory 201709-17

Change Mirror Download
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Gentoo Linux Security Advisory GLSA 201709-17
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https://security.gentoo.org/
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Severity: Normal
Title: CVS: Command injection
Date: September 24, 2017
Bugs: #627498
ID: 201709-17

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Synopsis
========

A command injection vulnerability in CVS may allow remote attackers to
execute arbitrary code.

Background
==========

CVS (Concurrent Versions System) is an open-source network-transparent
version control system. It contains both a client utility and a server.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-vcs/cvs < 1.12.12-r12 >= 1.12.12-r12

Description
===========

It was discovered that when CVS is configured to use SSH for remote
repositories it allows remote attackers to execute arbitrary code
through a repository URL with a specially crafted hostname.

Impact
======

A remote attacker, by enticing a user to clone a specially crafted
repository, could possibly execute arbitrary code with the privileges
of the process.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All CVS users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-vcs/cvs-1.12.12-r12"

References
==========

[ 1 ] CVE-2017-12836
https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-12836

Availability
============

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

https://security.gentoo.org/glsa/201709-17

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 2017 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.

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

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