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              AUSCERT External Security Bulletin Redistribution
                                      
                                      
                 ESB-98.142 -- Sun Security Bulletin #00174
                                    ping
                              10 September 1998

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

Sun Microsystems, Inc. has released the following advisory concerning a
buffer overflow in the ping program.  

This vulnerability can be exploited by local users to gain root access.


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________________________________________________________________________________
 		   Sun Microsystems, Inc. Security Bulletin
 		
Bulletin Number:	#00174
Date: 			September 9, 1998
Cross-Ref:		
Title:			ping
________________________________________________________________________________

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.

IN NO EVENT WILL SUN MICROSYSTEMS, INC. BE LIABLE FOR ANY LOST REVENUE, 
PROFIT OR DATA, OR FOR DIRECT, SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL 
OR PUNITIVE DAMAGES HOWEVER CAUSED AND REGARDLESS OF ANY THEORY OF LIABILITY 
ARISING OUT OF THE USE OF OR INABILITY TO USE THE INFORMATION CONTAINED IN 
THIS SECURITY BULLETIN, EVEN IF SUN MICROSYSTEMS, INC. HAS BEEN ADVISED OF 
THE POSSIBILITY OF SUCH DAMAGES.

If any of the above provisions are held to be in violation of applicable law, 
void, or unenforceable in any jurisdiction, then such provisions are waived 
to the extent necessary for this disclaimer to be otherwise enforceable in 
such jurisdiction.
________________________________________________________________________________

1.  Bulletins Topics

    Sun announces the release of patches for Solaris(tm) 2.6, 2.5.1, 2.5, 
    2.4, 2.3 (SunOS(tm) 5.6, 5.5.1, 5.5, 5.4, 5.3), SunOS 4.1.4 and
    4.1.3_U1 which relate to a vulnerability in the ping program.

    Sun recommends that you install the patches listed in section 4 
    immediately on systems running SunOS 5.6, 5.5.1, 5.5, 5.4, 5.3, 
    4.1.4 and 4.1.3_U1.

2.  Affected Supported Versions
 	
    SunOS versions 5.6, 5.6_x86, 5.5.1, 5.5.1_x86, 5.5, 5.5_x86,
                   5.4, 5.4_x86, 5.3, 4.1.4 and 4.1.3_U1
    
3.  Understanding the Vulnerability

    The ping utility uses the ICMP protocol's ECHO_REQUEST datagram to
    elicit an ICMP ECHO_RESPONSE from the specified host or network gateway.
    A buffer overflow has been discovered in the ping program which could be
    exploited by local users to gain root access.
        
4.  List of Patches

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

    SunOS		Patch ID	
    _____		_________
    SunOS 5.6           106448-01
    SunOS 5.6_x86       106449-01
    SunOS 5.5.1         103699-02
    SunOS 5.5.1_x86     103700-02
    SunOS 5.5           106446-01
    SunOS 5.5_x86       106447-01
    SunOS 5.4           106451-01
    SunOS 5.4_x86       106452-01
    SunOS 5.3           106450-01
    SunOS 4.1.4         103297-02
    SunOS 4.1.3_U1      106546-01
    
_______________________________________________________________________________
APPENDICES

A.  Patches listed in this bulletin are available to all Sun customers via 
    World Wide Web at:
    
    	<URL:http://sunsolve.sun.com/sunsolve/pubpatches/patches.html>

B.  Checksums for the patches listed in this bulletin are available via 
    World Wide Web at:

    	<URL:http://sunsolve.sun.com/sunsolve/pubpatches/patches.html>

C.  Sun security bulletins are available via World Wide Web at:

	<URL:http://sunsolve.sun.com/pub-cgi/secbul.pl>
	
D.  Sun Security Coordination Team's PGP key is available via World Wide Web 
    at:

	<URL:http://sunsolve.sun.com/sunsolve/secbulletins/SunSCkey.txt>
		    	    	    
E.  To report or inquire about a security problem with Sun software, contact 
    one or more of the following:
  
        - Your local Sun answer centers
        - Your representative computer security response team, such as CERT 
        - Sun Security Coordination Team. Send email to:
	 
     		security-alert@sun.com

F.  To receive information or subscribe to our CWS (Customer Warning System) 
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    with a subject line (not body) containing one of the following commands:

        Command         Information Returned/Action Taken
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                                send #138

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                            	subscribe cws your-email-address
			
                        Note that your-email-address should be substituted
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        unsubscribe     Sender is removed from the CWS mailing list.
________________________________________________________________________________

Copyright 1998 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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