GLSA 200606-05: Pound: HTTP request smuggling

http://security.gentoo.org/

Severity:	low
Title:	Pound: HTTP request smuggling
Date:	06/07/2006
Bugs:	#118541
ID:	200606-05

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	Architecture(s)
www-servers/pound	< 2.0.5	>= 2.0.5	All supported architectures

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

References

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 https://bugs.gentoo.org.