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TUCoPS :: HP/UX :: ciacj040.txt

HP Sendmail Denial Of Service Failures




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__________________________________________________________

                       The U.S. Department of Energy
                    Computer Incident Advisory Capability
                           ___  __ __    _     ___
                          /       |     /_\   /
                          \___  __|__  /   \  \___
             __________________________________________________________

                             INFORMATION BULLETIN

                    HP-UX Security Vulnerability in sendmail


April 26, 1999 17:00 GMT                                       Number J-040
___________________________________________________________________________

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 publicly available patches.
___________________________________________________________________________
VULNERABILITY  The risk is high.  The HP bulletin states that this should be
ASSESSMENT:    done as soon as possible.
___________________________________________________________________________

[Start of Hewlett-Packard bulletin]
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.

- -------------------------------------------------------------------------
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.

- -------------------------------------------------------------------------
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-----------------------------------
 [End of Hewlett-Packard bulletin]

___________________________________________________________________________

CIAC wishes to acknowledge the contributions of Hewlett-Packard Company for
the information contained in this bulletin.
___________________________________________________________________________


CIAC, the Computer Incident Advisory Capability, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
member of FIRST, the Forum of Incident Response and Security Teams, a
global organization established to foster cooperation and coordination
among computer security teams worldwide.

CIAC services are available to DOE, DOE contractors, and the NIH. CIAC
can be contacted at:
    Voice:    +1 925-422-8193
    FAX:      +1 925-423-8002
    STU-III:  +1 925-423-2604
    E-mail:   ciac@llnl.gov

For emergencies and off-hour assistance, DOE, DOE contractor sites,
and the NIH may contact CIAC 24-hours a day. During off hours (5PM -
8AM PST), call the CIAC voice number 925-422-8193 and leave a message,
or call 800-759-7243 (800-SKY-PAGE) to send a Sky Page. CIAC has two
Sky Page PIN numbers, the primary PIN number, 8550070, is for the CIAC
duty person, and the secondary PIN number, 8550074 is for the CIAC
Project Leader.

Previous CIAC notices, anti-virus software, and other information are
available from the CIAC Computer Security Archive.

   World Wide Web:      http://www.ciac.org/
                        (or http://ciac.llnl.gov -- they're the same
machine)
   Anonymous FTP:       ftp.ciac.org
                        (or ciac.llnl.gov -- they're the same machine)
   Modem access:        +1 (925) 423-4753 (28.8K baud)
                        +1 (925) 423-3331 (28.8K baud)

CIAC has several self-subscribing mailing lists for electronic
publications:
1. CIAC-BULLETIN for Advisories, highest priority - time critical
   information and Bulletins, important computer security information;
2. SPI-ANNOUNCE for official news about Security Profile Inspector
   (SPI) software updates, new features, distribution and
   availability;
3. SPI-NOTES, for discussion of problems and solutions regarding the
   use of SPI products.

Our mailing lists are managed by a public domain software package
called Majordomo, which ignores E-mail header subject lines. To
subscribe (add yourself) to one of our mailing lists, send the
following request as the E-mail message body, substituting
ciac-bulletin, spi-announce OR spi-notes for list-name:

E-mail to       ciac-listproc@llnl.gov or majordomo@rumpole.llnl.gov:
        subscribe list-name
  e.g., subscribe ciac-bulletin

You will receive an acknowledgment email immediately with a confirmation
that you will need to mail back to the addresses above, as per the
instructions in the email.  This is a partial protection to make sure
you are really the one who asked to be signed up for the list in question.

If you include the word 'help' in the body of an email to the above
address,
it will also send back an information file on how to subscribe/unsubscribe,
get past issues of CIAC bulletins via email, etc.

PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing
communities receive CIAC bulletins.  If you are not part of these
communities, please contact your agency's response team to report
incidents. Your agency's team will coordinate with CIAC. The Forum of
Incident Response and Security Teams (FIRST) is a world-wide
organization. A list of FIRST member organizations and their
constituencies can be obtained via WWW at http://www.first.org/.

This document was prepared as an account of work sponsored by an
agency of the United States Government. Neither the United States
Government nor the University of California nor any of their
employees, makes any warranty, express or implied, or assumes any
legal liability or responsibility for the accuracy, completeness, or
usefulness of any information, apparatus, product, or process
disclosed, or represents that its use would not infringe privately
owned rights. Reference herein to any specific commercial products,
process, or service by trade name, trademark, manufacturer, or
otherwise, does not necessarily constitute or imply its endorsement,
recommendation or favoring by the United States Government or the
University of California. The views and opinions of authors expressed
herein do not necessarily state or reflect those of the United States
Government or the University of California, and shall not be used for
advertising or product endorsement purposes.

LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC)

J-030: Microsoft BackOffice Vulnerability
J-031: Debian Linux "Super" package Buffer Overflow
J-032: Windows Backdoors Update II:
J-033: SGI X Server Font Path Vulnerability
J-034: Cisco 7xx TCP and HTTP Vulnerabilities
J-035: Linux Blind TCP Spoofing
J-036: LDAP Buffer overflow against Microsoft Directory Services
J-037: W97M.Melissa Word Macro Virus
J-038: HP-UX Vulnerabilities (hpterm, ftp)
J-039: HP-UX Vulnerabilities (MC/ServiceGuard & MC/LockManager, DES




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