GLSA 201006-21: UnrealIRCd: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	high
Title:	UnrealIRCd: Multiple vulnerabilities
Date:	06/14/2010
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	Architecture(s)
net-irc/unrealircd	< 3.2.8.1-r1	>= 3.2.8.1-r1	All supported architectures

Description

Multiple vulnerabilities have been reported in UnrealIRCd:

The vendor reported a buffer overflow in the user authorization code (CVE-2009-4893).
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 (CVE-2010-2075).

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

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 https://bugs.gentoo.org.