[ GLSA 200812-04 ] lighttpd: Multiple vulnerabilities

[Robert Buchholz <rbu () gentoo org>]

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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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