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[ GLSA 200503-27 ] Xzabite dyndnsupdate: Multiple vulnerabilities
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Joined: 13 Jun 2003
Posts: 4087
Location: Dresden, Germany

PostPosted: Mon Mar 21, 2005 4:05 pm    Post subject: [ GLSA 200503-27 ] Xzabite dyndnsupdate: Multiple vulnerabil Reply with quote

Gentoo Linux Security Advisory

Title: Xzabite dyndnsupdate: Multiple vulnerabilities (GLSA 200503-27)
Severity: normal
Exploitable: remote
Date: March 21, 2005
Updated: May 22, 2006
Bug(s): #84659
ID: 200503-27


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


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

Affected Packages

Package: net-misc/dyndnsupdate
Vulnerable: <= 0.6.15
Architectures: All supported architectures


Toby Dickenson discovered that dyndnsupdate suffers from multiple overflows.


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


There is no known workaround at this time.


Currently, there is no released version of dyndnsupdate that contains a fix for these issues. The original 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



Last edited by GLSA on Mon May 22, 2006 4:18 am; edited 2 times in total
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