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Category:  Application (Generic)  >  BIND Vendors:  ISC (Internet Software Consortium)
(HP Issues Preliminary Fix) BIND 8 Negative Cache Poisoning May Cause Denial of Service Conditions
SecurityTracker Alert ID:  1008346
CVE Reference:  CAN-2003-0914   (Links to External Site)
Date:  Dec 1 2003
Impact:  Denial of service via network
Fix Available:  Yes   Vendor Confirmed:  Yes  
Version(s): 8.4.2 and prior versions
Description:  A vulnerability was reported in BIND 8. A remote user can introduce invalid DNS records to cause denial of service conditions.

It is reported that a remote user can conduct a cache poisoning attack by causing the target server to retain invalid negative responses. A temporary denial of service may occur until the invalid record expires from the cache.

No further details were provided.

Impact:  A remote user can cause denial of service conditions.
Solution:  HP has released a preliminary update. Alternately, HP indicates that you can upgrade to Bind 9.2.0.

For B.11.11 - Install the preliminary depot: SSRT3653UX.depot.

For B.11.00 - A Bind 8.1.2 upgrade is available from the ftp site listed below.

System: hprc.external.hp.com (192.170.19.51)
Login: bind812
Password: bind812

FTP Access: ftp://bind:bind1@hprc.external.hp.com/
or: ftp://bind:bind1@192.170.19.51/

For B.11.11 - file: SSRT3653UX.depot
For B.11.00 - file: BIND812v005.depot

Vendor URL:  isc.org/products/BIND/ (Links to External Site)
Cause:  Input validation error
Underlying OS:  UNIX (HP/UX)
Underlying OS Comments:  HP-UX B.11.00 and B.11.11.
Reported By:  support_feedback@us-support2-mail.external.hp.com (IT Resource Center )
Message History:   This archive entry is a follow-up to the message listed below.
Nov 27 2003 BIND 8 Negative Cache Poisoning May Cause Denial of Service Conditions



 Source Message Contents

Date:  Mon, 1 Dec 2003 16:12:37 -0500 (EST)
From:  support_feedback@us-support2-mail.external.hp.com (IT Resource Center )
Subject:  HP-UX security bulletins digest

 


                        HP Support Information Digests

===============================================================================
o  Security Bulletin Digest Split
   ------------------------------

   The security bulletins digest has been split into multiple digests
   based on the operating system (HP-UX, MPE/iX, and HP Secure OS 
   Software for Linux).  You will continue to receive all security
   bulletin digests unless you choose to update your subscriptions.  
   
   To update your subscriptions, use your browser to access the
   IT Resource Center on the World Wide Web at:

     http://support.itrc.hp.com/

   Under the Maintenance and Support Menu, click on the "more..." link.
   Then use the 'login' link at the left side of the screen to login
   using your IT Resource Center User ID and Password.

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

   To subscribe or unsubscribe to a specific security bulletin digest, 
   select or unselect the checkbox beside it. Then click the 
   "Update Subscriptions" button at the bottom of the page.

o  IT Resource Center World Wide Web Service
   ---------------------------------------------------

   If you subscribed through the IT Resource Center and would
   like to be REMOVED from this mailing list, access the
   IT Resource Center on the World Wide Web at:

     http://support.itrc.hp.com/

   Login using your IT Resource Center User ID and Password.
   Then select Support Information Digests (located under
   Maintenance and Support).  You may then unsubscribe from the
   appropriate digest.
===============================================================================

 
Digest Name:  daily HP-UX security bulletins digest
    Created:  Mon Dec  1 14:02:04 EST 2003

Table of Contents:

Document ID      Title
---------------  -----------
HPSBUX0311-303   SSRT3653 Bind 8.1.2

The documents are listed below.
-------------------------------------------------------------------------------

 
Document ID:  HPSBUX0311-303
Date Loaded:  20031130
      Title:  SSRT3653 Bind 8.1.2

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

 -----------------------------------------------------------------
 Source: HEWLETT-PACKARD COMPANY
 SECURITY BULLETIN: HPSBUX0311-303
 Originally issued: 30 November 2003
 SSRT3653 Bind 8.1.2
 -----------------------------------------------------------------

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: Potential security vulnerability in Bind 8.1.2.

PLATFORM: HP-UX B.11.00 and B.11.11.

IMPACT: Potential remotely exploitable denial of service.

SOLUTION: Until a product upgrade is available, download and
          install appropriate preliminary updates or upgrade
          to Bind 9.2.0.

          B.11.11 - Install the preliminary depot:
                    SSRT3653UX.depot.
          B.11.00 - A Bind 8.1.2 upgrade is available from
                    the ftp site listed below.

          The issue can be avoided by upgrading to
          Bind 9.2.0 which is available now.  The security
          bulletin HPSBUX0208-209 has details about required
          revisions of Bind 9.2.0 for B.11.00 and B.11.11.

MANUAL ACTIONS: Yes - NonUpdate
                B.11.11 - Install SSRT3653UX.depot.
                          or upgrade to Bind 9.2.0.
                B.11.00 - Upgrade to Bind 9.2.0 or
                          install BIND812v005.depot.

AVAILABILITY:  This bulletin will be revised when a patch
               is available for B.11.11.

 -----------------------------------------------------------------
 A. Background
    The potential for a remotely exploitable denial of service
    exists in Bind 8.1.2.

     AFFECTED VERSIONS

     The following is a list by HP-UX revision of
     affected filesets and the fileset revision or
     patch containing the fix.  To determine if a
     system has an affected version, search the
     output of "swlist -a revision -l fileset"
     for an affected fileset, then determine if
     a fixed revision or the applicable patch is
     installed.

     HP-UX B.11.11
     =============
     InternetSrvcs.INETSVCS-RUN
     fix: install SSRT3653UX.depot or
          upgrade to Bind 9.2.0.

     HP-UX B.11.00
     =============
     BINDv812.INETSVCS-BIND
     fix: upgrade to BIND-812 revision B.11.00.01.005 or
          upgrade to Bind 9.2.0.

     END AFFECTED VERSIONS

 B. Recommended solution

    Note:
          The issue can be avoided by upgrading to
          Bind 9.2.0 which is available now.  The security
          bulletin HPSBUX0208-209 has details about required
          revisions of Bind 9.2.0 for B.11.00 and B.11.11.

     HP-UX B.11.00 Bind 8.1.2
     ========================
     BIND812 for B.11.00 has been discontinued.  It will
     become obsolete by the end of March, 2004.  A new
     version of BIND812 for B.11.00 has been created to
     address the issue of this bulletin.  However, it is
     recommended that customers upgrade to Bind 9.2.0 now.
     More details can be found here:

        <http://software.hp.com/portal/swdepot/
         displayProductInfo.do?productNumber=BIND812>

     The new version of BIND812 for B.11.00 is available from
     the ftp site listed below.  Since BIND812 for B.11.00 has
     been discontinued, this version will not be available
     from software.hp.com.

     HP-UX B.11.11 Bind 8.1.2
     ========================

     Until a patch is available a temporary depot has been created
     to install a version of /usr/sbin/named which addresses the
     issue.  The depot is available from the ftp site listed
     below.  The depot will not install the new named file unless
     PHNE_28450 has been installed first.  PHNE_28450 is available
     from <http://itrc.hp.com>.

    =========================================================

    For B.11.00 download BIND812v005.depot from the
    following ftp site.

    For B.11.11 download SSRT3653UX.depot from the
    following ftp site.

        System:    hprc.external.hp.com  (192.170.19.51)
        Login:     bind812
        Password:  bind812

        FTP Access: ftp://bind:bind1@hprc.external.hp.com/
                or: ftp://bind:bind1@192.170.19.51/
        For B.11.11 - file: SSRT3653UX.depot
        For B.11.00 - file: BIND812v005.depot

        Note: There is an ftp defect in IE5 that may result in
               a browser hang.  To work around this:
        - Select Tools -> Internet Options -> Advanced
        - Un-check the option:
               [ ] Enable folder view for FTP sites

      If you wish to verify the md5 sum please refer to:

               HPSBUX9408-016
               Patch sums and the MD5 program

        For B11.00 - BIND812v005.depot
        cksum: 1413515727 1239040 BIND812v005.depot
        MD5 (BIND812v005.depot) = 333920fa1b74820bee15f2287bacc3c2

        For B.11.11 - SSRT3653UX.depot
        cksum: 509054485 389120 SSRT3653UX.depot
        MD5 (SSRT3653UX.depot) = ee96c169ec3712d5907b7fe983d108dc

      For B.11.00 - Install BIND812v005.depot using swinstall.

      For B.11.11 - Install SSRT3653UX.depot using swinstall
                    after PHNE_28450 has been installed.

      Further information is available in the readme file:
       cd <directory containing SSRT3653UX.depot>
       swlist -d -l product -a readme @ $PWD/SSRT3653UX.depot


- ------------------------------------------------------------------

 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 your existing login or the
    "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.

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

    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 "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:
    http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
    displayProductInfo.pl?productNumber=B6834AA

    The security patch matrix is also available via anonymous
    ftp:

    ftp://ftp.itrc.hp.com/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.

 ----------------------------------------------------------------

(c) Copyright 2003 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.

 ________________________________________________________________

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.2

iQA/AwUBP8oPruAfOvwtKn1ZEQJTlwCg2y1qe8rZiKbUPHuCPkFbIIhVaPkAnja2
/Nbi2zNFnmk0FQ0mtBxKx48U
=L5yo
-----END PGP SIGNATURE-----
-----End of Document ID:  HPSBUX0311-303--------------------------------------

 


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