Important Security Update for UnrealIRCd in Gentoo
Posted on: 06/15/2010 11:35 AM

A security update for UnrealIRCd in Gentoo is available after the included version was compromised with a backdoor trojan

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 201006-21
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: High
Title: UnrealIRCd: Multiple vulnerabilities
Date: June 14, 2010
Bugs: #260806, #323691
ID: 201006-21

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

Synopsis
========

Multiple vulnerabilities in UnrealIRCd might allow remote attackers to compromise the "unrealircd" account, or cause a Denial of Service.

Background
==========

UnrealIRCd is an Internet Relay Chat (IRC) daemon.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-irc/unrealircd < 3.2.8.1-r1 >= 3.2.8.1-r1

Description
===========

Multiple vulnerabilities have been reported in UnrealIRCd:

* The vendor reported a buffer overflow in the user authorization code.

* The vendor reported that the distributed source code of UnrealIRCd was compromised and altered to include a system() call that could be called with arbitrary user input.

Impact
======

A remote attacker could exploit these vulnerabilities to cause the execution of arbitrary commands with the privileges of the user running UnrealIRCd, or a Denial of Service condition. NOTE: By default UnrealIRCd on Gentoo is run with the privileges of the "unrealircd"
user.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All UnrealIRCd users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-irc/unrealircd-3.2.8.1-r1"

References
==========

[ 1 ] UnrealIRCd Security Advisory 20090413
http://www.unrealircd.com/txt/unrealsecadvisory.20090413.txt
[ 2 ] UnrealIRCd Security Advisory 20100612
http://www.unrealircd.com/txt/unrealsecadvisory.20100612.txt

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-201006-21.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 Gentoo Bugzilla Main Page

License
=======

Copyright 2010 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.

302 Found



Printed from Linux Compatible (http://www.linuxcompatible.org/news/story/security_update_for_unrealircd_in_gentoo.html)