Operating System:

Published:

13 August 2002

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

 ESB-2002.424 -- HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0208-209
               Sec. Vulnerability in DNS resolver libraries
                              13 August 2002

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

Product:                DNS resolver libraries
Vendor:                 Hewlett-Packard
Operating System:       HP-UX 11.11
                        HP-UX 11.00
Impact:                 Execute Arbitrary Code/Commands
                        Denial of Service
Access Required:        Remote

Ref:                    ESB-2002.319

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Document ID:  HPSBUX0208-209
Date Loaded:  20020811
      Title:  Sec. Vulnerability in DNS resolver libraries

 -----------------------------------------------------------------
 HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0208-209
 Originally issued: 12 Aug 2002
 SSRT2316
 -----------------------------------------------------------------

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 buffer overflows in DNS resolver libraries.

PLATFORM: HP9000 Series 700/800 running HP-UX releases 11.00 and
          11.11 (11i) with products using DNS resolver libraries,
          including, but not limited to, BINDv920.INETSVCS-BIND.

DAMAGE: Potential unauthorized access, denial of service.

SOLUTION: Until a product upgrade is available, download and
          install the preliminary fix, BIND920ver2.depot.

MANUAL ACTIONS: Install BIND920ver2.depot.

AVAILABILITY:  The depot is available now.  This bulletin will be
               updated when a product upgrade is available. This 
               bulletin will also be updated when solutions for
               other vulnerable products are available.
               
 ------------------------------------------------------------------ 
 A. Background
    CERT advisory CA-2002-19 reports a buffer overflow
    vulnerability which may affect products on HP-UX release
    11.00 and release 11.11 (11i).  The vulnerable products 
    include BINDv920.INETSVCS-BIND.  This bulletin will be
    updated when solutions for other vulnerable products are
    available.

 B. Recommended solution
    Until a product upgrade is available, download and install
    the BIND920ver2.depot. 


      1. Download BIND920ver2.depot.gz from the ftp site.
         This file is temporary and will be deleted when a 
         product upgrade is available from itrc.hp.com.

        System:    hprc.external.hp.com  (192.170.19.51)
        Login:     bind
        Password:  bind1

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

        file: BIND920ver2.depot.gz

        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


      2. Copy the BIND920ver2.depot.gz file to a protected
         directory and unpack it.
         If you wish to verify the md5 sum please refer to:

               HPSBUX9408-016
               Patch sums and the MD5 program

          The md5 sum for BIND920ver2.depot is:

  MD5 (BIND920ver2.depot) = b5c7a1d3c18c83d015edb56da2eb0080
 
          The cksum output is:

  1311390197 20582400 BIND920ver2.depot

      3. Install BIND920ver2.depot using swinstall.

 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.

    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:  HPSBUX0208-209--------------------------------------

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