GLSA 200503-27: Xzabite dyndnsupdate: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	Xzabite dyndnsupdate: Multiple vulnerabilities
Date:	03/21/2005
Bugs:	#84659
ID:	200503-27

Synopsis

Xzabite's dyndnsupdate software suffers from multiple vulnerabilities, potentially resulting in the remote execution of arbitrary code.

Background

dyndnsupdate is a dyndns.org data updater written by Fredrik "xzabite" Haglund.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-misc/dyndnsupdate	<= 0.6.15		All supported architectures

Description

Toby Dickenson discovered that dyndnsupdate suffers from multiple overflows.

Impact

A remote attacker, posing as a dyndns.org server, could execute arbitrary code with the rights of the user running dyndnsupdate.

Workaround

There is no known workaround at this time.

Resolution

Currently, there is no released version of dyndnsupdate that contains a fix for these issues. The original xzabite.org distribution site is dead, the code contains several other problems and more secure alternatives exist, such as the net-dns/ddclient package. Therefore, the dyndnsupdate package has been hard-masked prior to complete removal from Portage, and current users are advised to unmerge the package:

    # emerge --unmerge net-misc/dyndnsupdate

References

CVE-2005-0830

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200503-27.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.