[ GLSA 200907-05 ] git: git-daemon Denial of Service

[Robert Buchholz <rbu () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200907-05
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: git: git-daemon Denial of Service
      Date: July 12, 2009
      Bugs: #273905
        ID: 200907-05

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Synopsis
========

An error in git-daemon might lead to a Denial of Service via resource
consumption.

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      < 1.6.3.3                            >= 1.6.3.3

Description
===========

Shawn O. Pearce reported that git-daemon runs into an infinite loop
when handling requests that contain unrecognized arguments.

Impact
======

A remote unauthenticated attacker could send a specially crafted
request to git-daemon, possibly leading to a Denial of Service (CPU
consumption).

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-1.6.3.3"

References
==========

  [ 1 ] CVE-2009-2108
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2108

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

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

  http://security.gentoo.org/glsa/glsa-200907-05.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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