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                                 CERT-Renater

                      Note d'Information No. 2000/VULN054
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DATE                      : 7/04/2000

HARDWARE PLATFORM(S)      : HP9000 Series 7/800

OPERATING SYSTEM(S)       : HP-UX 11.04 (VVOS)
                            
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Document ID:  HPSBUX0004-112
Date Loaded:  20000404
      Title:  Sec. Vulnerability with VirtualVault

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    HEWLETT-PACKARD COMPANY SECURITY ADVISORY: #00112, 04 April 2000
-------------------------------------------------------------------------

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:  Programs running on the VirtualVault may receive data
          inappropriately via an interface configured with aliased
          IP addresses.

PLATFORM: HP9000 Series 7/800 running only HP-UX 11.04 (VVOS).

DAMAGE:   Unprivileged processes may receive remote data unexpectedly.

SOLUTION: Apply the patch noted below.

AVAILABILITY: The patch is currently available.
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I.
  A. Background
     HP-UX 11.04 (VVOS) introduced a vulnerability in the network
     layer of the operating system that could allow data to be
     delivered via a network interface to unprivileged processes if
     multiple IP addresses are assigned to the interface.

  B. Fixing the problem
     This problem can be eliminated by installing the following patch.

         HP-UX 11.04 (VVOS):              PHNE_21261

     Note: A system reboot will be required.  There is no
           corresponding problem with HP-UX 10.24 (VVOS).

   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://us-support.external.hp.com
               (for US, Canada, Asia-Pacific, & Latin-America)
        http://europe-support.external.hp.com     (for Europe)

      Under the Maintenance and Support Menu (Electronic Support
Center):
        click on the "more..." link.  Then -

      To -subscribe- to future HP Security Bulletins, or
      To -review- bulletins already released
        click on "Support Information Digests" near the bottom of the
        page, under "Notifications".
      Login with your user ID and password (or register for one).
      (Remember to save the User ID assigned to you, and your password).

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

      Once in the archive the third 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:

      us-ffs.external.hp.com
      ~ftp/export/patches/hp-ux_patch_matrix

   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 advisory to
     Hewlett-Packard (HP) customers (or the Internet community) for the
     purpose of alerting them to problems, if and only if, the advisory
     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: 
HPSBUX0004-112--------------------------------------

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        http://www.urec.fr/securite
        http://www.cru.fr/securite
        http://www.renater.fr 
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	+ CERT-RENATER		| tel : 01-53-94-20-44		+
	+ 151 bd de l'Hopital	| fax : 01-53-94-20-41		+
	+ 75013 Paris		| email: certsvp@renater.fr	+
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