GLSA 201509-06: Git: Arbitrary command execution

http://security.gentoo.org/

Severity:	normal
Title:	Git: Arbitrary command execution
Date:	09/24/2015
Bugs:	#532984
ID:	201509-06

Synopsis

An attacker could execute arbitrary commands via Git repositories in a case-insensitive or case-normalizing filesystem.

Background

Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-vcs/git	< 2.0.5	>= 1.8.5.6	All supported architectures

Description

A vulnerability in Git causing Git-compatible clients that access case-insensitive or case-normalizing filesystems to overwrite the .git/config when cloning or checking out a repository, leading to execution of arbitrary commands.

Impact

An attacker can execute arbitrary commands on a client machine that clones a crafted malicious Git tree.

Workaround

There is no known workaround at this time.

Resolution

All Git 1.8.x users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-vcs/git-1.8.5.6"

All Git 1.9.x users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-vcs/git-1.9.5"

All Git 2.0.x users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-vcs/git-2.0.5"

References

CVE-2014-9390

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201509-06.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.