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              AUSCERT External Security Bulletin Redistribution
                             
      ESB-1999.054 -- HEWLETT-PACKARD SECURITY BULLETIN: HPSBUX9904-097
                      Security Vulnerability in sendmail
                                22 April 1999

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Hewlett-Packard has released the following bulletin concerning a security
vulnerability in sendmail release 8.8.6 on HP 9000 Series 700/800 Servers
running HP-UX 10.20 and 11.00. This vulnerability may allow users to
initiate a Denial of Service.

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Document ID:  HPSBUX9904-097
Date Loaded:  19990419
      Title:  Security Vulnerability in sendmail

- -------------------------------------------------------------------------
    HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #00097, 20 April 1999
- -------------------------------------------------------------------------

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:   sendmail release 8.8.6 causes Denial of Service failures.

PLATFORM:  HP 9000 Series 700/800 Servers running HP-UX 10.20 and 11.00

DAMAGE:    Users can initiate a Denial of Service.

SOLUTION:  Apply the patches listed below.

AVAILABILITY:  All patches are available now.

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I.
   A. Background
      Hewlett-Packard Company HP9000 Series 700/800 systems that are
      running sendmail release 8.8.6 accept connections sub-optimally,
      which cause security problems.  Public domain fixes now in sendmail
      8.9.3 have been ported to HP-UX sendmail 8.8.6 release patch.

   B. Fixing the problem
       For HP-UX releases prior to 10.20, upgrade from sendmail 5.65 to
       sendmail release 8.8.6.  See www.software.hp.com

       For HP-UX release 10.20:   PHNE_17135;
       For HP-UX release 11.00:   PHNE_17190.

   C. To subscribe to automatically receive future NEW HP Security
      Bulletins or access the HP Electronic Support Center, use your
      browser to get to our ESC web page at:

      http://us-support.external.hp.com   (for non-European locations),
      or  http://europe-support.external.hp.com  (for Europe)

      Login with your user ID and password (or register for one).
      Remember to save the User ID/password assigned to you.

      Once you are in the Main Menu:
      To -subscribe- to future HP Security Bulletins,
        click on "Support Information Digests".
      To -review Security bulletins already released-,
        click on the "Search Technical Knowledge Database."
      To -retrieve patches-, click on "Individual Patches" and select
        appropriate release and locate with the patch identifier (ID).
      To -browse the HP Security Bulletin Archive-,  select the link at
       the bottom of the page once in the "Support Information Digests".
      To -view the Security Patch Matrix-, (updated daily) which
       categorizes security patches by platform/OS release, and by
       bulletin topic, go to the archive (above) and follow the links.

      The security patch matrix is also available via anonymous ftp:
      us-ffs.external.hp.com   or  ~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 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:  HPSBUX9904-097--------------------------------------

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