From: Robert Buchholz <rbu@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200903-15 ] git: Multiple vulnerabilties
Date: Mon, 9 Mar 2009 14:56:27 +0100
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Gentoo Linux Security Advisory GLSA 200903-15
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http://security.gentoo.org/
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Severity: High
Title: git: Multiple vulnerabilties
Date: March 09, 2009
Bugs: #251343
ID: 200903-15
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Synopsis
========
Multiple vulnerabilities in gitweb allow for remote execution of
arbitrary commands.
Background
==========
GIT - the stupid content tracker, the revision control system used by
the Linux kernel team.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-util/git < 1.6.0.6 >= 1.6.0.6
Description
===========
Multiple vulnerabilities have been reported in gitweb that is part of
the git package:
* Shell metacharacters related to git_search are not properly
sanitized (CVE-2008-5516).
* Shell metacharacters related to git_snapshot and git_object are not
properly sanitized (CVE-2008-5517).
* The diff.external configuration variable as set in a repository can
be executed by gitweb (CVE-2008-5916).
Impact
======
A remote unauthenticated attacker can execute arbitrary commands via
shell metacharacters in a query, remote attackers with write access to
a git repository configuration can execute arbitrary commands with the
privileges of the user running gitweb by modifying the diff.external
configuration variable in the repository and sending a crafted query to
gitweb.
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-util/git-1.6.0.6"
References
==========
[ 1 ] CVE-2008-5516
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5516
[ 2 ] CVE-2008-5517
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5517
[ 3 ] CVE-2008-5916
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5916
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200903-15.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
http://bugs.gentoo.org.
License
=======
Copyright 2009 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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