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________________________________________________________________________________
        Sun Microsystems, Inc. Security Bulletin
     
Bulletin Number:  #00195
Date:       August 2, 2000
Cross-Ref:    
Title:      lp
________________________________________________________________________________

The information contained in this Security Bulletin is provided "AS IS." 
Sun makes no warranties of any kind whatsoever with respect to the information 
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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 buffer overflow 
    vulnerabilities in libprint.so.2 and patches for Solaris(tm) 7 
    and 2.6 which relate to a buffer overflow vulnerability in 
    /usr/lib/lp/bin/netpr.

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

2.  Who is Affected
  
    libprint.so.2:
    
  Vulnerable:    SunOS 5.7, 5.7_x86, 5.6, and 5.6_x86
      Not vulnerable:    All other supported versions of SunOS.
      
    /usr/lib/lp/bin/netpr:
  
      Vulnerable:       SunOS 5.8, 5.8_x86 5.7, 5.7_x86, 5.6, 
            and 5.6_x86
      Not vulnerable:    All other supported versions of SunOS.  

3.  Understanding the Vulnerability

    The lpset utility sets printing configuration information in the 
    system configuration databases. A buffer overflow vulnerability 
    has been discovered in libprint.so.2 which may be exploited by a 
    local attacker through lpset to gain root access. A buffer overflow
    vulnerability was also discovered in /usr/lib/lp/bin/netpr which
    may be exploited by a local attacker to gain root access.
        
4.  List of Patches

    The following patches are available in relation to the above problems.
    
    OS Version    Patch ID        
    __________    _________
    SunOS 5.8    109320-01    
    SunOS 5.8_x86  109321-01    
    SunOS 5.7    107115-05    
    SunOS 5.7_x86  107115-06    
    SunOS 5.6    106235-06   
    SunOS 5.6_x86  106236-06    
_______________________________________________________________________________
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 
    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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        security-alert@sun.com
   
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________________________________________________________________________________

Copyright 2000 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 
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