Security update for DHCP

Knowledgebase

(Last modified: 16MAY2002)

solutions Security update for DHCP SuSE Linux Maintenance Web (4582d6de3b621cad66cee91b6142063f)

Applies to

Product(s): SuSE Linux Enterprise Server 7 for IBM zSeries
SuSE eMail Server III
SuSE Linux Enterprise Server 7 for PowerPC
SuSE Linux Enterprise Server 7 for IA32
SuSE Linux Enterprise Server 7 for S/390 and zSeries
SuSE Linux Connectivity Server

Package: dhcp
Release: 20020516
Obsoletes: none

Indications

Everyone using the ISC DHCP server should update this package.

Contraindications

None.

Problem description

A format string bug overflow has been discovered in the ISC DHCP server. The code that logs dynamical DNS updates is vulnerable and could allow a remote attacker to run commands with the privileges of dhcpd (which runs as user root by default).
The vulnerability is described in further depth on http://www.cert.org/advisories/CA-2002-12.html

Solution

Please install the updates provided at the location noted below.

Installation notes

This update is provided as an RPM package that can easily be installed onto a running system by using this command:
rpm -Uvh dhcp.rpm
After the update the server needs to be restarted with the command
rcdhcpd restart

links to download packages

Download Source Packages

Download the source code of the patches for maintained products.

Disclaimer

The Origin of this information may be internal or external to Novell. Novell makes all reasonable efforts to verify this information. However, the information provided in this document is for your information only. Novell makes no explicit or implied claims to the validity of this information.

Any trademarks referenced in this document are the property of their respective owners. Consult your product manuals for complete trademark information.