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              AUSCERT External Security Bulletin Redistribution
                             
                ESB-1999.186 -- Sun Security Bulletin #00190
                                   snoop
                              10 December 1999

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

Sun Microsystems, Inc. has released the following bulletin concerning a
buffer overflow vulnerability in the snoop program.  This vulnerability
may be exploited by a remote attacker to execute arbitrary instructions
and gain root access.

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________________________________________________________________________________
 		   Sun Microsystems, Inc. Security Bulletin
 		
Bulletin Number:	#00190
Date: 			December 9, 1999
Cross-Ref:		ISS Security Advisory, December 9, 1999
Title:			snoop
________________________________________________________________________________

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) 7, 2.6, 2.5.1,
    2.5, 2.4, and 2.3 (SunOS(tm) 5.7, 5.6, 5.5.1, 5.5, 5.4 and 5.3), which 
    relate to a vulnerability with snoop.

    Sun recommends that you install the patches listed in section 4 
    immediately on systems running SunOS 5.7, 5.6, 5.5.1, 5.5, 5.4, and 5.3.

2.  Who is Affected
	
    Vulnerable:     SunOS 5.7, 5.7_x86, 5.6, 5.6_x86, 5.5.1, 5.5.1_x86, 
    			  5.5, 5.5_x86, 5.4, 5.4_x86, and 5.3.
                 
    Not vulnerable: All other supported versions of SunOS.
    
3.  Understanding the Vulnerability

    The snoop program captures packets from the network and displays their
    contents. A buffer overflow vulnerability has been discovered which may 
    be exploited by a remote attacker to execute arbitrary instructions 
    and gain root access. The buffer overflow occurs when snoop analyzes 
    certain types of large requests to the rquotad rpc service.
    
4.  List of Patches

    The following patches are available in relation to the above problem.
    
    OS Version		Patch ID        
    __________		_________
    SunOS 5.7		108482-01    
    SunOS 5.7_x86	108483-01    
    SunOS 5.6		108492-01   
    SunOS 5.6_x86	108493-01    
    SunOS 5.5.1		104960-02
    SunOS 5.5.1_x86	104961-02  
    SunOS 5.5		108501-01
    SunOS 5.5_x86	108502-01    
    SunOS 5.4		108490-01    
    SunOS 5.4_x86	108491-01   
    SunOS 5.3		108489-01
    
_______________________________________________________________________________    
Sun acknowledges, with thanks, Internet Security Systems (ISS) for bringing 
this vulnerability to our attention.
_______________________________________________________________________________
APPENDICES

A.  Patches listed in this bulletin are available to all Sun customers at:
    
    http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/patch-license&nav=pub-patches

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/pub-cgi/secBulletin.pl
	
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 
    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) 
    mailing list, send email to:
    
    		security-alert@sun.com
   
    with a subject line (not body) containing one of the following commands:

        Command         Information Returned/Action Taken
        _______         _________________________________

        help            An explanation of how to get information
        
        key             Sun Security Coordination Team's PGP key
	
        list            A list of current security topics

        query [topic]   The email is treated as an inquiry and is forwarded to 
                        the Security Coordination Team

        report [topic]  The email is treated as a security report and is
                        forwarded to the Security Coordination Team. Please 
                        encrypt sensitive mail using Sun Security Coordination
                        Team's PGP key

        send topic      A short status summary or bulletin. For example, to 
                        retrieve a Security Bulletin #00138, supply the 
                        following in the subject line (not body):
        		
                                send #138

        subscribe       Sender is added to our mailing list.  To subscribe, 
                        supply the following in the subject line (not body):

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

Copyright 1999 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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