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Gentoo GLSA-201709-17: Normal Advisory for CVS Command Injection

gentoo
Calendar Grey September 24, 2017
Dist Gentoo Esm H88
A vulnerability notice regarding Gentoo CVS has been issued, potentially enabling malicious actors to execute arbitrary code remotely. It is advised to apply updates promptly.
A command injection vulnerability in CVS may allow remote attackers to execute arbitrary code.

Summary

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.

Topics%20covered

Topics Covered

security advisory gentoo software update code execution command injection

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
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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.

Severity: Normal
Title: CVS: Command injection
Date: September 24, 2017
Bugs: #627498
ID: 201709-17

Topics%20covered

Topics Covered

security advisory gentoo software update code execution command injection

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.

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Affected Packages

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

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.