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SUPPORT COMMUNICATION - SECURITY BULLETIN
Document ID: c00589050
Version: 2
HPSBUX02090 SSRT051058 rev.2 - HP-UX Secure Shell Remote Denial of Service (DoS)
NOTICE: The information in this Security Bulletin should be acted upon as soon as possible.
Release Date: 2006-06-05
Last Updated: 2006-06-05
Potential Security Impact: Remote Denial of Service (DoS).
Source: Hewlett-Packard Company, HP Software Security Response Team
VULNERABILITY SUMMARY
A potential security vulnerability has been identified with HP-UX running Secure Shell.
The vulnerability could be remotely exploited to allow a remote unauthorized user to
create a Denial of Service (DoS).
References: CVE-2005-2096, CAN-2005-2798
SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
-> HP-UX B.11.00, B.11.04, B.11.11, B.11.23.
BACKGROUND
To determine if an HP-UX system has an affected version, search the output of
"swlist -a revision -l fileset" for one of the filesets listed below. For affected
systems verify that the recommended action has been taken.
-> AFFECTED VERSIONS
HP-UX B.11.00
HP-UX B.11.11
==========
Secure_Shell.SECURE_SHELL
action: install revision A.04.20.004 or subsequent
HP-UX B.11.04
============ -> VaultTS.VV-OPENSSH,fr=A.04.70
-> action: install PHSS_34566 or subsequent
-> VaultTS.VV-OPENSSH,fr=A.04.60
-> action: install PHSS_34567 or subsequent
HP-UX B.11.23
==========Secure_Shell.SECURE_SHELL
action: install revision A.04.20.005 or subsequent
END AFFECTED VERSIONS
RESOLUTION
HP is providing the following HP-UX Secure Shell (T1471AA) updates to
resolve this potential vulnerability. These updates can be downloaded
rom http://software.hp.com
HP-UX B.11.00 - HP-UX Secure Shell A.04.20.004
-> HP-UX B.11.04 - PHSS_34566 or PHSS_34567
HP-UX B.11.11 - HP-UX Secure Shell A.04.20.004
HP-UX B.11.23 - HP-UX Secure Shell A.04.20.005
The HP-UX Secure Shell A.04.20.004 and A.04.20.005 are based
on OpenSSH 4.2p1, including the following libraries: zlib1.2.3,
OpenSSL v0.9.7i and TCP Wrappers v7.6.
MANUAL ACTIONS: Yes - Update
Download and install the appropriate update from http://software.hp.com
-> B.11.04 - no manual actions
PRODUCT SPECIFIC INFORMATION
HP-UX Security Patch Check: Security Patch Check revision B.02.00 analyzes
all HP-issued Security Bulletins to provide a subset of recommended actions
that potentially affect a specific HP-UX system. For more information: http://software.hp.com/portal/swdepot/displayProductInfo.do? productNumber=B6834AA
HISTORY:
Version: 1 (rev.1) 09 January 2006 Initial release
Version: 2 (rev.2) 05 June 2006 added B.11.04 patches
MANUAL ACTIONS
Yes - Update
Support: For further information, contact normal HP Services
support channel.
Report: To report a potential security vulnerability with any HP
supported product, send Email to: security-alert@hp.com. It is
strongly recommended that security related information being
communicated to HP be encrypted using PGP, especially exploit
information. To get the security-alert PGP key, please send an
e-mail message as follows:
To: security-alert@hp.com
Subject: get key
Subscribe: To initiate a subscription to receive future HP
Security Bulletins via Email:
http://h30046.www3.hp.com/driverAlertProfile.php?regioncode=NA&
langcode=USENG&jumpid=in_SC-GEN__driverITRC&topiccode=ITRC
On the web page: ITRC security bulletins and patch sign-up
Under Step1: your ITRC security bulletins and patches
- check ALL categories for which alerts are required and
continue.
Under Step2: your ITRC operating systems
- verify your operating system selections are checked and
save.
To update an existing subscription:
http://h30046.www3.hp.com/subSignIn.php
Log in on the web page:
Subscriber's choice for Business: sign-in.
On the web page:
Subscriber's Choice: your profile summary
- use Edit Profile to update appropriate sections.
To review previously published Security Bulletins visit:
http://www.itrc.hp.com/service/cki/secBullArchive.do
* The Software Product Category that this Security Bulletin
relates to is represented by the 5th and 6th characters of the
Bulletin number in the title:
GN = HP General SW,
MA = HP Management Agents,
MI = Misc. 3rd party SW,
MP = HP MPE/iX,
NS = HP NonStop Servers,
OV = HP OpenVMS,
PI = HP Printing & Imaging,
ST = HP Storage SW,
TL = HP Trusted Linux,
TU = HP Tru64 UNIX,
UX = HP-UX,
VV = HP Virtual Vault
System management and security procedures must be reviewed
frequently to maintain system integrity. HP is continually
reviewing and enhancing the security features of software products
to provide customers with current secure solutions.
"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. To the
extent permitted by law, HP disclaims all warranties, either
express or implied, including the warranties of merchantability
and fitness for a particular purpose, title and non-infringement."
(c)Copyright 2006 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 nor 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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