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Gentoo Linux Security Advisory GLSA 201509-06
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https://security.gentoo.org/
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Severity: Normal
Title: Git: Arbitrary command execution
Date: September 24, 2015
Bugs: #532984
ID: 201509-06

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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
——————————————————————-
1 dev-vcs/git < 2.0.5 *>= 1.8.5.6
*>= 1.9.5
>= 2.0.5

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
==========

[ 1 ] CVE-2014-9390
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-9390

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

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

https://security.gentoo.org/glsa/201509-06

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 2015 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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