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SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c00619550
Version: 2

HPSBUX02103 SSRT5953 rev.2 - HP-UX passwd(1) Local Denial of
Service (DoS)

NOTICE: The information in this Security Bulletin should be acted
upon as soon as possible.

Release Date: 2006-03-26
Last Updated: 2006-03-26

Potential Security Impact: Local 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 /sbin/passwd which could be locally exploited to create a
Denial of Service (DoS).

References: none

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
HP-UX B.11.00, B.11.11, B.11.23.

BACKGROUND

The /sbin/passwd command does not recover gracefully from some
error conditions.

AFFECTED VERSIONS

HP-UX B.11.00
==============OS-Core.UX-CORE
action: install PHCO_33219 or subsequent

HP_UX B.11.11
==============OS-Core.UX-CORE
action: install PHCO_33214, PHCO_33215 or subsequent

HP-UX B.11.23
==============OS-Core.UX2-CORE
action: install PHCO_32149, PHCO_32926 or subsequent

END AFFECTED VERSIONS

RESOLUTION

HP is making the following patches available to resolve this
issue.
The patches are available for download from http://itrc.hp.com 

B.11.00 - PHCO_33219 - /sbin/passwd cumulative patch
B.11.11 - PHCO_33214 - passwd(1) cumulative patch
B.11.11 - PHCO_33215 - libpam_unix cumulative patch
B.11.23 - PHCO_32149 - passwd(1) cumulative patch
B.11.23 - PHCO_32926 - libpam_unix


MANUAL ACTIONS: No

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) - 14 March 2006 Initial Release
Version:2 (rev.2) - 24 March 2006 reformatted


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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