Pound: Buffer overflow vulnerability

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200504-29 / Pound
Release Date	April 30, 2005
Latest Revision	May 22, 2006: 02
Impact	high
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
www-servers/pound	< 1.8.3	>= 1.8.3	All supported architectures

Related bugreports: #90851

Synopsis

Pound is vulnerable to a buffer overflow that could lead to the remote execution of arbitrary code.

2. Impact Information

Background

Pound is a reverse proxy, load balancer and HTTPS front-end.

Description

Steven Van Acker has discovered a buffer overflow vulnerability in the "add_port()" function in Pound.

Impact

A remote attacker could send a request for an overly long hostname parameter, which could lead to the remote execution of arbitrary code with the rights of the Pound daemon process (by default, Gentoo uses the "nobody" user to run the Pound daemon).

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Pound users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-servers/pound-1.8.3"

4. References

Updated April 30, 2005

Summary: This is a Gentoo Linux Security Advisory

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