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HPSBUX02181 SSRT061289 rev.5 - HP-UX Running IPFilter, Remote Denial of Service (DoS)


Document ID: c00837319

Version: 5

HPSBUX02181 SSRT061289 rev.5 - HP-UX Running IPFilter, Remote Denial of Service (DoS)
NOTICE: The information in this Security Bulletin should be acted upon as soon as possible.

Release Date: 2007-01-16

Last Updated: 2009-08-05

Potential Security Impact: Remote Denial of Service (DoS)

Source: Hewlett-Packard Company, HP Software Security Response Team


A potential security vulnerability has been identified with HP-UX running IPFilter. The vulnerability could be remotely exploited to create a Denial of Service (DoS).

References: CVE-2007-0396

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.

HP-UX B.11.23 running IPFilter with PHNE_34474 or subsequent and without PHNE_35766 or subsequent.


For a PGP signed version of this security bulletin please write to:

CVSS 2.0 Base Metrics

Base Vector
Base Score

Information on CVSS is documented in HP Customer Notice: HPSN-2008-002.

A successful exploit will result in a system crash.

Note: The vulnerability is resolved in the ARPA Transport patch PHNE_35766 or subsequent. Changes made in the LAN patch PHNE_34474 or subsequent allow the vulnerability to be exploited. Therefore, the vulnerable configuration is HP-UX B.11.23 running IPFilter with PHNE_34474 or subsequent and without PHNE_35766 or subsequent.


HP has made the following patches available to resolve the vulnerability. The patches are available from

PHNE_35766 or subsequent



HP-UX Software Assistant: HP-UX Software Assistant is an enhanced application that replaces HP-UX Security Patch Check. It analyzes all Security Bulletins issued by HP and lists recommended actions that may apply to a specific HP-UX system. It can also download patches and create a depot automatically. For more information see

The following text is for use by the HP-UX Software Assistant.


HP-UX B.11.23
action: install PHNE_35766 or subsequent


Version:1 (rev.1) 16 January 2007 Initial release
Version:2 (rev.2) 5 February 2007 UNOF_35938.depot available
Version:3 (rev.3) 3 October 2007 PHNE_35545 and PHNE_35766 are available
Version:4 (rev.4) 3 August 2009 PHNE_35766 or subsequent resolves the vulnerability
Version:5 (rev.5) 5 August 2009 Move Note from Resolution to Background

Third Party Security Patches: Third party security patches that are to be installed on systems running HP software products should be applied in accordance with the customer's patch management policy.

©Copyright 2009 Hewlett-Packard Development Company, L.P.
Hewlett-Packard Company shall not be liable for technical or editorial errors or omissions contained herein. The information provided is provided "as is" without warranty of any kind. To the extent permitted by law, neither HP or its affiliates, subcontractors or suppliers will be liable for incidental,special or consequential damages including downtime cost; lost profits;damages relating to the procurement of substitute products or services; or damages for loss of data, or software restoration. The information in this document is subject to change without notice. Hewlett-Packard Company and the names of Hewlett-Packard products referenced herein are trademarks of Hewlett-Packard Company in the United States and other countries. Other product and company names mentioned herein may be trademarks of their respective owners.

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