Operating System:

Published:

23 October 2001

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

               ESB-2001.448 -- Sun Security Bulletin #00211
                                   xntpd
                              24 October 2001

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

Product:                xntpd
Vendor:                 Sun Microsystems
Operating System:       Solaris/SunOS
Platform:               Sparc
                        i386
Impact:                 Denial of Service
Access Required:        Remote

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________________________________________________________________________________
                    Sun Microsystems, Inc. Security Bulletin

Bulletin Number:          #00211
Date:                     October 23, 2001
Cross-Ref:                CERT Vulnerability Note VU#970472
Title:                    xntpd
________________________________________________________________________________

The information contained in this Security Bulletin is provided "AS IS."
Sun makes no warranties of any kind whatsoever with respect to the information
contained in this Security Bulletin. ALL EXPRESS OR IMPLIED CONDITIONS,
REPRESENTATIONS AND WARRANTIES, INCLUDING ANY WARRANTY OF NON-INFRINGEMENT OR
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE
HEREBY DISCLAIMED AND EXCLUDED TO THE EXTENT ALLOWED BY APPLICABLE LAW.

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OR PUNITIVE DAMAGES HOWEVER CAUSED AND REGARDLESS OF ANY THEORY OF LIABILITY
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If any of the above provisions are held to be in violation of applicable law,
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to the extent necessary for this disclaimer to be otherwise enforceable in
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________________________________________________________________________________

1.  Bulletins Topics

    Sun announces the release of patches for Solaris(tm) 8, 7, and
    2.6 (SunOS(tm) 5.8, 5.7, and 5.6) which relate to a vulnerability
    in xntpd(1M), the Network Time Protocol daemon.

    Sun recommends that you install the patches listed in section 4
    on systems running SunOS 5.8, 5.7, and 5.6 which use xntpd.

2.  Who is Affected

    Vulnerable:                SunOS 5.8, 5.8_x86, 5.7, 5.7_x86, 5.6,
                               5.6_x86

    The xntpd(1M) daemon was not shipped by Sun for earlier releases
    than Solaris 2.6.

3.  Understanding the Vulnerability

    The xntpd is a daemon which sets and maintains a UNIX system
    time-of-day in agreement with Internet standard time servers.
    xntpd is a complete implementation of the Network Time Protocol
    (NTP) version 3 standard, as defined by RFC 1305.

    CERT Vulnerability Note VU#970472 is available from:

    http://www.kb.cert.org/vuls/id/970472

4.  List of Patches

    The following patches are available in relation to the above issue.

    OS Version               Patch ID
    __________               _________
    SunOS 5.8                109667-04
    SunOS 5.8_x86            109668-04
    SunOS 5.7                109409-04
    SunOS 5.7_x86            109410-03
    SunOS 5.6                107298-03
    SunOS 5.6_x86            107299-03
_______________________________________________________________________________

APPENDICES

A.  Patches listed in this bulletin are available to all Sun customers at:

    http://sunsolve.sun.com/securitypatch

B.  Checksums for the patches listed in this bulletin are available at:

    ftp://sunsolve.sun.com/pub/patches/CHECKSUMS

C.  Sun security bulletins are available at:

    http://sunsolve.sun.com/security

D.  Sun Security Coordination Team's PGP key is available at:

    http://sunsolve.sun.com/pgpkey.txt

E.  To report or inquire about a security problem with Sun software, contact
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________________________________________________________________________________

Copyright 2001 Sun Microsystems, Inc. All rights reserved. Sun,
Sun Microsystems, Solaris and SunOS are trademarks or registered trademarks
of Sun Microsystems, Inc. in the United States and other countries. This
Security Bulletin may be reproduced and distributed, provided that this
Security Bulletin is not modified in any way and is attributed to
Sun Microsystems, Inc. and provided that such reproduction and distribution
is performed for non-commercial purposes.

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