A new security update has been released for Gentoo Linux - lighttpd: Multiple vulnerabilities. Here the announcement:

Gentoo Linux Security Advisory GLSA 200812-04
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: lighttpd: Multiple vulnerabilities
Date: December 02, 2008
Bugs: #238180
ID: 200812-04

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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