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             AUSCERT External Security Bulletin Redistribution

                   ESB-2002.661 -- Apple Security Update
            Security Update 2002-11-21 (BIND) is now available
                             26 November 2002

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

Product:                ISC BIND
Vendor:                 ISC
Operating System:       Mac OS X prior to version 10.2.2
Impact:                 Root Compromise
                        Execute Arbitrary Code/Commands
                        Denial of Service
Access Required:        Remote

Ref:                    AL-2002.13
                        ESB-2002.626
                        ESB-2002.635
                        ESB-2002.636
                        ESB-2002.637

Comment: The PGP signature on this advisory was broken, however it does
         correctly reference the advisory on Apple's website.

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Security Update 2002-11-21 is now available.  It contains BIND version 
8.3.4
to address multiple potential vulnerabilities.

CVE IDs:  CAN-2002-1219, CAN-2002-1220, CAN-2002-1221, CAN-2002-0029

Description:  Several of these vulnerabilities may allow remote 
attackers
to execute arbitrary code with elevated privileges. The other 
vulnerabilities
could allow remote attackers to disrupt the normal operation of DNS 
name service
running on servers.

Further information is available at:
    http://www.cert.org/advisories/CA-2002-31.html
    http://www.kb.cert.org/vuls/id/457875

Affected systems:  Systems that have enabled BIND and are using
    BIND versions 8.1, 8.2 to 8.2.6, and 8.3.0 to 8.3.3.

Mitigating Factors:  BIND is not enabled by default on Mac OS X or Mac 
OS X Server

System requirements:  Mac OS X 10.2.2

If BIND is enabled on Mac OS X systems prior to 10.2.2, the 
recommendation
is to either upgrade to Mac OS X 10.2 Jaguar then apply this Security 
Update,
or to update BIND to version 8.3.4 from the ISC site at:
http://www.isc.org/products/BIND/bind8.html

Security Update 2002-11-21 may be obtained from:

   * Software Update pane in System Preferences (for 10.2.2 or later)

   * Apple's Software Downloads web site:
      http://www.info.apple.com/kbnum/n120169

    To help verify the integrity of Security Update 2002-11-21 from the
    Software Downloads web site, the download file is titled:
      SecurityUpd2002-11-21.dmg
      Its SHA-1 digest is:  9137fc5c1b8922475939ec93ab638494ff6e69be

Information will also be posted to the Apple Support website:
http://docs.info.apple.com/article.html?artnum=61798

This message is signed with Apple's Product Security PGP key, and
details are available at:
http://www.apple.com/support/security/security_pgp.html

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This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content.  The decision to use any or all of this information is
the responsibility of each user or organisation, and should be done so in
accordance with site policies and procedures.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the original authors to ensure that the information is still current.

Contact information for the authors of the original document is included
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information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        http://www.auscert.org.au/Information/advisories.html

If you believe that your system has been compromised, contact AusCERT or
your representative in FIRST (Forum of Incident Response and Security
Teams).

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business 
                hours which are GMT+10:00 (AEST).  On call after hours 
                for member emergencies only.

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