GLSA 201709-17: CVS: Command injection

http://security.gentoo.org/

Severity:	normal
Title:	CVS: Command injection
Date:	09/24/2017
Bugs:	#627498
ID:	201709-17

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	Architecture(s)
dev-vcs/cvs	< 1.12.12-r12	>= 1.12.12-r12	All supported architectures

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

CVE-2017-12836

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201709-17.xml

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.