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Gentoo Linux Security Advisory                           GLSA 200812-04
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: lighttpd: Multiple vulnerabilities
      Date: December 02, 2008
      Bugs: #238180
        ID: 200812-04

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Synopsis
========

Multiple vulnerabilities in lighttpd may lead to information disclosure
or a Denial of Service.

Background
==========

lighttpd is a lightweight high-performance web server.

Affected packages
=================

    -------------------------------------------------------------------
     Package               /  Vulnerable  /                 Unaffected
    -------------------------------------------------------------------
  1  www-servers/lighttpd      < 1.4.20                      >= 1.4.20

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

Multiple vulnerabilities have been reported in lighttpd:

* Qhy reported a memory leak in the http_request_parse() function in
  request.c (CVE-2008-4298).

* Gaetan Bisson reported that URIs are not decoded before applying
  url.redirect and url.rewrite rules (CVE-2008-4359).

* Anders1 reported that mod_userdir performs case-sensitive
  comparisons on filename components in configuration options, which is
  insufficient when case-insensitive filesystems are used
  (CVE-2008-4360).

Impact
======

A remote attacker could exploit these vulnerabilities to cause a Denial
of Service, to bypass intended access restrictions, to obtain sensitive
information, or to possibly modify data.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All lighttpd users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose
 ">=www-servers/lighttpd-1.4.20"

References
==========

  [ 1 ] CVE-2008-4298
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4298
  [ 2 ] CVE-2008-4359
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4359
  [ 3 ] CVE-2008-4360
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4360

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

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

  http://security.gentoo.org/glsa/glsa-200812-04.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 2008 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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