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             AUSCERT External Security Bulletin Redistribution

                      ESB-2001.295 -- HPSBUX0107-159
                  Security Vulnerability in dlkm (rev.01)
                               18 July 2001

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

Product:                dlkm
Vendor:                 Hewlett-Packard
Operating System:       HP-UX 11.11
Platform:               HP9000 Series 700/800
Impact:                 Increased Privileges
Access Required:        Local

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Document ID:  HPSBUX0107-159
Date Loaded:  20010716
      Title:  Security Vulnerability in dlkm (rev.01)

- -------------------------------------------------------------------------
**REV 01** HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #0159, 16 July '01
Last revised: 16 July '01
- -------------------------------------------------------------------------

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.

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PROBLEM:  dlkm static kernel symbol table is incorrectly configured.

PLATFORM: HP9000 Series 700/800 running HP-UX release 11.11 only.

DAMAGE:   Allows potential unauthorized local privileges.

**Rev.01**
SOLUTION: Install the appropriate patch for HP-UX release 11.11
- ---->>           HP-UX 11.11                 PHCO_23492

AVAILABILITY: The patch is available now.
CHANGE SUMMARY:  Incorrect patch ID provided.
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A.  Background
    Dynamically Loadable Kernel Modules is a feature introduced
    in HP-UX 11.00.  A vulnerability was introduced in HP-UX 11.11.
    Installation of the referenced patch is necessary for continued
    secure operation of the HP-UX 11.11 servers.
    HP-UX 11.00 is not vulnerable.
**Rev. 01**
B.  Recommended solution
    Retrieve the following patch from itrc.hp.com and apply it
    to your affected systems.
- ---->>     HP-UX 11.11                          PHCO_23492


    NOTE:  A reboot of the system will be necessary.


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
   at:

       http://itrc.hp.com

   Use the 'Login' tab at the left side of the screen to login
   using your ID and password.

   Use the 'Login' tab at the left side of the screen to login
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   "Register" button at the left to create a login, in order to
   gain access to many areas of the ITRC.  Remember to save the
   User ID assigned to you, and your password.

   Under the "Notifications" section (near the bottom of the
   page), select "Support Information Digests".

   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
   Subscriptions" button at the bottom of the page.

   or

   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 "hp security bulletins archive" near the bottom.
   Once in the archive the top link is to our current Security
   Patch Matrix.  Updated daily, this matrix categorizes security
   patches by platform/OS release, and by bulletin topic.

   The security patch matrix is also available via anonymous ftp:

   ftp.itrc.hp.com:~ftp/export/patches/hp-ux_patch_matrix

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

D. To report new security vulnerabilities, send email to

    security-alert@hp.com

   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) of 'get key' (no quotes) to
   security-alert@hp.com.

   Permission is granted for copying and circulating this Bulletin
   to Hewlett-Packard (HP) customers (or the Internet community)
   for the purpose of alerting them to problems, if and only if,
   the Bulletin is not edited or changed in any way, is attributed
   to HP, and provided such reproduction and/or distribution is
   performed for non-commercial purposes.

   Any other use of this information is prohibited. HP is not
   liable for any misuse of this information by any third party.
________________________________________________________________________
- -----End of Document ID:  HPSBUX0107-159--------------------------------------

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