Nexuiz: Multiple vulnerabilities

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200702-09 / nexuiz
Release Date	February 25, 2007
Latest Revision	February 25, 2007: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
games-fps/nexuiz	< 2.2.1	>= 2.2.1	All supported architectures

Related bugreports: #166044

Synopsis

Two separate vulnerabilities have been found in Nexuiz allowing the remote execution of arbitrary code and a Denial of Service.

2. Impact Information

Background

Nexuiz is a multi-player FPS game which uses a modified version of the Quake 1 engine.

Description

Nexuiz fails to correctly validate input within "clientcommands". There is also a failure to correctly handle connection attempts from remote hosts.

Impact

Using a specially crafted "clientcommand" a remote attacker can cause a buffer overflow in Nexuiz which could result in the execution of arbitrary code. Additionally, there is a Denial of Service vulnerability in Nexuiz allowing an attacker to cause Nexuiz to crash or to run out of resources by overloading it with specially crafted connection requests.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Nexuiz users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=games-fps/nexuiz-2.2.1"

4. References

Page updated February 25, 2007

Summary: This is a Gentoo Linux Security Advisory

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