[ GLSA 200606-05 ] Pound: HTTP request smuggling
From: Sune Kloppenborg Jeppesen <jaervosz@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200606-05 ] Pound: HTTP request smuggling
Date: Wed, 7 Jun 2006 20:13:14 +0200
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Cc: bugtraq@securityfocus.com, full-disclosure@lists.grok.org.uk,
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Organization: Gentoo Linux Security Team
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Gentoo Linux Security Advisory GLSA 200606-05
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http://security.gentoo.org/
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Severity: Low
Title: Pound: HTTP request smuggling
Date: June 07, 2006
Bugs: #118541
ID: 200606-05
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Synopsis
========
Pound is vulnerable to HTTP request smuggling, which could be exploited
to bypass security restrictions or poison web caches.
Background
==========
Pound is a reverse proxy, load balancer and HTTPS front-end. It allows
to distribute the load on several web servers and offers a SSL wrapper
for web servers that do not support SSL directly.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-servers/pound < 2.0.5 >= 2.0.5
Description
===========
Pound fails to handle HTTP requests with conflicting "Content-Length"
and "Transfer-Encoding" headers correctly.
Impact
======
An attacker could exploit this vulnerability by sending HTTP requests
with specially crafted "Content-Length" and "Transfer-Encoding" headers
to bypass certain security restrictions or to poison the web proxy
cache.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Pound users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-servers/pound-2.0.5"
References
==========
[ 1 ] CVE-2005-3751
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3751
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200606-05.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 2006 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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