SSRT2370 Sec. Vulnerability with ntpd on HP-UX

SSRT2370 Sec. Vulnerability with ntpd on HP-UX

Post by Security Ale » Thu, 12 Dec 2002 23:18:14

Hash: SHA1

Note: The bulletin id should be HPSBUX0212-232.  This will
      be corrected in a later revision.
 Originally issued: 10 Dec 2002
 SSRT2370 Sec. Vulnerability with ntpd on HP-UX

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

The information in the following Security Bulletin should be
acted upon as soon as possible.  Hewlett-Packard Company will
not be liable for any consequences to any customer resulting
from customer's failure to fully implement instructions in this
Security Bulletin as soon as possible.

PROBLEM:  xntpd software may HANG or exhibit extremely poor

IMPACT:   Potential denial of service (DoS).

PLATFORM: HP 9000 Series 700 and 800 running HP-UX releases 10.20,
          10.24, 11.00, 11.04 and 11.11 using the xntpd software.

SOLUTION: Retrieve and apply the following patches:

          for HP-UX 10.20:          PHNE_24510
          for HP-UX 10.24(VVOS):    PHNE_28002
          for HP-UX 11.00:          PHNE_27223
          for HP-UX 11.04(VVOS):    PHNE_27442
          for HP-UX 11.11:          PHNE_24512


AVAILABILITY:  All patches are currently available from
 A. Background
    Some HP-UX systems running the latest xntpd software may HANG
    or exhibit extremely poor performance.

 B. Recommended solution
    HP has made available a patch to upgrade NTP timeservices.
    Retrieve and apply the following patches to affected systems.
          for HP-UX 10.20:          PHNE_24510
                    10.24(VVOS):    PHNE_28002
                    11.00:          PHNE_27223
                    11.04(VVOS):    PHNE_27442
                    11.11:          PHNE_24512

    The patches do not require a reboot.  The problem is fixed in
    HP-UX release 11.22.    

 C. To subscribe to automatically receive future NEW HP Security
    Bulletins from the HP IT Resource Center via electronic
    mail, do the following:

    Use your browser to get to the HP IT Resource Center page

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    In the left most frame select "Maintenance and Support".

    Under the "Notifications" section (near the bottom of
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    To -subscribe- to future HP Security Bulletins or other
    Technical Digests, click the check box (in the left column)
    for the appropriate digest and then click the "Update
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    To -review- bulletins already released, select the link
    (in the middle column) for the appropriate digest.

    To -gain access- to the Security Patch Matrix, select
    the link for "The Security Bulletins Archive".  (near the
    bottom of the page)  Once in the archive the third link is
    to the current Security Patch Matrix. Updated daily, this
    matrix categorizes security patches by platform/OS release,
    and by bulletin topic.  Security Patch Check completely
    automates the process of reviewing the patch matrix for
    11.XX systems.

    For information on the Security Patch Check tool, see:

    The security patch matrix is also available via anonymous

    On the "Support Information Digest Main" page:
    click on the "HP Security Bulletin Archive".

 D. To report new security vulnerabilities, send email to

    Please encrypt any exploit information using the
    security-alert PGP key, available from your local key
    server, or by sending a message with a -subject- (not body)


(c) Copyright 2002 Hewlett-Packard Company
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 HP products referenced
herein are trademarks and/or service marks of Hewlett-Packard
Company.  Other product and company names mentioned herein may be
trademarks and/or service marks of their respective owners.


Version: PGP Personal Security 7.0.3


Yours truly,
HP S/W Security Team
WTEC Cupertino, California