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Home » Hacking News » Hewlett Packard SSRT3498: screend DoS

Hewlett Packard SSRT3498: screend DoS

by Nikola Strahija on April 24th, 2003 A vulnerability has been found in HP Tru64 UNIX that may result in undetected network traffic or a denial-of-service.

Hash: SHA1

TITLE: SSRT3498 - HP Tru64 UNIX screend Potential Security


NOTICE: There are no restrictions for distribution of this Bulletin
provided that it remains complete and intact.

RELEASE DATE: 21 April 2003


Software Security Response Team



This bulletin will be posted to the support website
within 24 hours of release to -
Use the SEARCH IN feature box, enter SSRT3498 in the search window.

SSRT3498 screend (Severity High)

A potential security vulnerability has been reported in the HP Tru64
UNIX operating system that may result in undetected network traffic
or a Denial of Service (DoS). This potential vulnerability may be in
the form of local and remote security domain risks.


HP Tru64 UNIX V5.1B

HP Tru64 UNIX V5.1A

HP Tru64 UNIX V5.1

HP Tru64 UNIX V5.0A

HP Tru64 UNIX V4.0G

HP Tru64 UNIX V4.0F




HP NonStop Servers



Early Release Patches (ERPs) are now available for all supported
versions of HP Tru64 UNIX/TruCluster Server that provide a solution
to this potential vulnerability. The ERP kits use dupatch to install
and will not install over any Customer Specific Patches (CSPs) which
have file intersections with the ERPs. Contact your normal support
channel and request HP Tru64 services elevate a case to Support
Engineering if a CSP must be merged with one of the ERPs. Please
review the README file for each patch prior to installation.

The following ERP kits are applicable to any system running HP Tru64

HP Tru64 UNIX 5.1B
PREREQUISITE: HP Tru64 UNIX with PK1 (BL1) installed
ERP Kit Name: T64V51BB1-C0008100-17827-ES-20030404.tar
Kit Location:

HP Tru64 UNIX 5.1B *- Update to a minimum of V5.1B PK1 (BL1) and
install the ERP kit T64V51BB1-C0008100-17827-ES-20030404.tar

HP Tru64 UNIX 5.1A
PREREQUISITE: HP Tru64 UNIX with PK4 (BL21) installed
ERP Kit Name: T64V51AB21-C0113300-17831-ES-20030404.tar
Kit Location:

HP Tru64 UNIX Server 5.1A PK3 (BL3) - Update to a minimum of V5.1A
PK4 (BL21) and install the ERP kit

HP Tru64 UNIX 5.1
PREREQUISITE: HP Tru64 UNIX with PK6 (BL20) installed
ERP Kit Name: T64V51B20-C0176800-17832-ES-20030404.tar
Kit Location:

HP Tru64 UNIX 5.1 PK5 (BL19) - Update to a minimum of V5.1 PK6 (BL20)
and install ERP kit T64V51B20-C0176800-17832-ES-20030404.tar

HP Tru64 UNIX 5.0A
PREREQUISITE: Tru64 UNIX with PK3 (BL17) installed
Please submit an IPMT case to request the 5.0A patch kit for this

HP Tru64 UNIX 4.0G
PREREQUISITE: HP Tru64 UNIX with PK3 (BL17) installed
ERP Kit Name: T64V40GB17-C0029300-17837-ES-20030404.tar
Kit Location:

HP Tru64 UNIX 4.0F
PREREQUISITE: HP Tru64 UNIX with PK7 (BL18) installed
ERP Kit Name: DUV40FB18-C0093500-17836-ES-20030404.tar
Kit Location:

Patch Kits for Sierra Clusters (SC) can be obtained by contacting
your normal HP Sierra Cluster Support channel.

Information on how to verify MD5 and SHA1 checksums is
available at:

After completing the update, HP strongly recommends that you perform
an immediate backup of the system disk so that any subsequent
restore operations begin with updated software. Otherwise, the
updates must be re-applied after a future restore operation. Also,
if at some future time the system is upgraded to a later patch
release or version release, reinstall the appropriate ERP.

SUPPORT: For further information, contact HP Services.

SUBSCRIBE: To subscribe to automatically receive future Security
Advisories from the Software Security Response Team via electronic

REPORT: To report a potential security vulnerability with any HP
supported product, send email to: [email protected]

As always, HP urges you to periodically review your system management
and security procedures. HP will continue to review and enhance the
security features of its products and work with our customers to
maintain and improve the security and integrity of their systems.

"HP is broadly distributing this Security Bulletin in order to bring
to the attention of users of the affected HP products the important
security information contained in this Bulletin. HP recommends that
all users determine the applicability of this information to their
individual situations and take appropriate action. HP does not
warrant that this information is necessarily accurate or complete for
all user situations and, consequently, HP will not be responsible for
any damages resulting from user's use or disregard of the information
provided in this Bulletin."

(c)Copyright 2001, 2003 Hewlett-Packard Development Company, L.P.
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. 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.

Version: PGP 7.0.1


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