GLSA 201709-10: Git: Command injection

http://security.gentoo.org/

Severity:	normal
Title:	Git: Command injection
Date:	09/17/2017
Bugs:	#627488
ID:	201709-10

Synopsis

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

Background

Git is a small and fast distributed version control system designed to handle small and large projects.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-vcs/git	< 2.13.5	>= 2.13.5	All supported architectures

Description

Specially crafted ‘ssh://...’ URLs may allow the owner of the repository to execute arbitrary commands on client’s machine if those commands are already installed on the client’s system. This is especially dangerous when the third-party repository has one or more submodules with specially crafted ‘ssh://...’ URLs. Each time the repository is recursively cloned or submodules are updated the payload will be triggered.

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 Git users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-vcs/git-2.13.5"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201709-10.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.