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             AUSCERT External Security Bulletin Redistribution

                         ESB-2007.1042 -- [HP-UX]
        HP-UX Running rpc.yppasswdd, Remote Denial of Service (DoS)
                             21 December 2007

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              rpc.yppasswdd
Publisher:            Hewlett-Packard
Operating System:     HP-UX B.11.31, B.11.23 and B.11.11
Impact:               Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2007-6419

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SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c01294324
Version: 1

HPSBUX02295 SSRT071333 rev.1 - HP-UX Running rpc.yppasswdd, Remote Denial of
Service (DoS)

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

Release Date: 2007-12-19
Last Updated: 2007-12-19

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
rpc.yppasswdd. The vulnerability could be exploited remotely to create a
denial of service (DoS).

References: CVE_2007-6419

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
HP-UX B.11.11, B.11.23, and B.11.31

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.11.11 
============== 
NFS.KEY-CORE 
NFS.NFS-64ALIB 
NFS.NFS-64SLIB 
NFS.NFS-CLIENT 
NFS.NFS-CORE 
NFS.NFS-ENG-A-MAN 
NFS.NFS-PRG 
NFS.NFS-SERVER 
NFS.NFS-SHLIBS 
NFS.NIS-CLIENT 
NFS.NIS-CORE 
NFS.NIS-SERVER 
NFS.NISPLUS-CORE 
OS-Core.CORE-ENG-A-MAN 
NFS.NFS-KRN 
NFS.NFS-KRN 
action: install patch PHNE_36168 or subsequent 

HP-UX B.11.23 
============== 
NFS.NFS-ENG-A-MAN 
NFS.NISPLUS-CORE 
NFS.KEY-CORE 
NFS.NFS-64SLIB 
NFS.NIS2-CLIENT 
NFS.NIS2-CORE 
NFS.NIS2-SERVER 
NFS.KEY-CORE 
NFS.NFS-64SLIB 
NFS.NIS2-CLIENT 
NFS.NIS2-CORE 
NFS.NIS2-SERVER 
action: install patch PHNE_36260 or subsequent 

HP-UX B.11.31 
============== 
NFS.NIS2-SERVER 
NFS.NIS2-SERVER 
action: install patch PHNE_36449 or subsequent 

END AFFECTED VERSIONS 


RESOLUTION
HP is providing the following patches to resolve the vulnerability. 
The updates are available from: http://itrc.hp.com 

OS Release 
 Patch ID 
 
HP-UX B.11.11
 PHNE_36168 or subsequent
 
HP-UX B.11.23
 PHNE_36260 or subsequent
 
HP-UX B.11.31
 PHNE_36449 or subsequent
 

MANUAL ACTIONS: No 

PRODUCT SPECIFIC INFORMATION 

HP-UX Software Assistant: 
HP-UX Software Assistant is an enhanced application that replaces
HP-UX Security Patch Check. It analyzes all HP-issued Security Bulletins
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: https://www.hp.com/go/swa 

HISTORY: Version 1 (rev.1) - 19 December 2007 Initial Release 

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


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 VirtualVault
 

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."

©Copyright 2007 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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        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
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