Vulnerability Assessment & Network Security Forums
If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Check for the version of the dhcp package
Detailed Explanation for this Vulnerability Assessment
The remote host is missing the patch for the advisory SUSE-SA:2003:0006 (dhcp).
The ISC (Internet Software Consortium) dhcp package is an imple-
mentation of the 'Dynamic Host Configuration Protocol' (DHCP).
An internal source code audit done by ISC revealed several buffer
overflows in the code which is responsible to handle dynamic DNS
These bugs permit a possible hacker to gain remote access to the dhcp
server if the dynamic DNS feature is enabled.
Dynamic DNS is not enabled by default on SUSE LINUX.
As temporary fix you can disable dynamic DNS support and restart your
dhcp server. Otherwise install the new packages from our FTP servers.
Please backup your lease file before updating the package.
After the package update you have to restart the dhcp server
This can be done by executing the following commands as root:
- rcdhcpd restart
or (for older versions):
- rcdhcp restart
Please download the update package for your distribution and verify its
integrity by the methods listed in section 3) of this announcement.
Then, install the package using the command 'rpm -Fhv file.rpm' to apply
Solution : http://www.suse.de/security/2003_006_dhcp.html
Network Security Threat Level: Medium
Networks Security ID:
Vulnerability Assessment Copyright: This script is Copyright (C) 2004 Tenable Network Security
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