TUCoPS :: Windows Apps :: m-060.txt

Sun Bytecode Verifier Vulnerability (CIAC M-060)

             __________________________________________________________

                       The U.S. Department of Energy
                     Computer Incident Advisory Center
                           ___  __ __    _     ___
                          /       |     /_\   /
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             __________________________________________________________

                             INFORMATION BULLETIN

                      Sun Bytecode Verifier Vulnerability
                         [Sun Security Bulletin #00218]

March 19, 2002 20:00 GMT                                          Number M-060
______________________________________________________________________________
PROBLEM:       A vulnerability in the Java(TM) Runtime Environment Bytecode 
               Verifier may be exploited by an untrusted applet to escalate 
               privileges. 
PLATFORM:      Systems running the following: 
               Netscape 6.2.1 and earlier 
               Netscape(TM) Communicator version 4.79 and earlier 
               Microsoft VM up to and including build 3802 

               This issue may or may not affect other vendors' Java technology 
               implementations which are derived from Sun's SDK and JDK(TM) 
               source bases. 
DAMAGE:        An untrusted applet may be used to escalate privileges. 
SOLUTION:      Install the latest releases as indicated below. 
______________________________________________________________________________
VULNERABILITY  The risk is MEDIUM. An untrusted applet would have to be used 
ASSESSMENT:    to exploit this vulnerability. 
______________________________________________________________________________
LINKS: 
 CIAC BULLETIN:      http://www.ciac.org/ciac/bulletins/m-060.shtml 
 ORIGINAL BULLETIN:  http://www.sunsolve.sun.com/pub-cgi/retrieve.pl?
                     doctype=coll&doc=secbull/218&type=0&nav=sec.sba 
______________________________________________________________________________

[***** Start Sun Security Bulletin #00218 *****]

___________________________________________________________________________
                    Sun Microsystems, Inc. Security Bulletin
                 
Bulletin Number:        #00218
Date:                   March 18, 2002
Cross-Ref:                
Title:                  Bytecode Verifier
___________________________________________________________________________

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to the information contained in this Security Bulletin. ALL EXPRESS 
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are waived to the extent necessary for this disclaimer to be otherwise 
enforceable in such jurisdiction.
________________________________________________________________________________

1. Background

   A vulnerability in the Java(TM) Runtime Environment Bytecode Verifier
   may be exploited by an untrusted applet to escalate privileges.
   
   The full and custom installations of Netscape 6.2.1 and earlier 
   are affected since they include an affected version of the 
   Java Runtime Environment. The default Java runtime environments of 
   Netscape(TM) Communicator version 4.79 and earlier are affected. 
   For more information, see 
   
      http://home.netscape.com/security
   
   Microsoft VM up to and including build 3802 is affected.
   For more information, see 
   
      http://www.microsoft.com/technet/security/bulletin/MS02-013.asp
     
   This issue may or may not affect other vendors' Java technology
   implementations which are derived from Sun's SDK and JDK(TM) source 
   bases. Sun has notified and made the remedy available to its Java 
   technology licensees.

   Sun recommends that users of affected releases upgrade to the latest 
   SDK, JDK, and JRE releases listed in section 3 of this bulletin.

2. Affected Releases
   
   The following releases are affected:
     
   Windows Production Releases
   
     SDK and JRE 1.3.1_01a or earlier
     SDK and JRE 1.3.0_05 or earlier
     SDK and JRE 1.2.2_010 or earlier
     JDK and JRE 1.1.8_008 or earlier
     
   Solaris(TM) Operating Environment (OE) Reference Releases
   
     SDK and JRE 1.2.2_010 or earlier
     JDK and JRE 1.1.8_008 or earlier
     
   Solaris OE Production Releases
   
     SDK and JRE 1.3.1_01 or earlier
     SDK and JRE 1.3.0_05 or earlier
     SDK and JRE 1.2.2_10 or earlier
     JDK and JRE 1.1.8_14 or earlier

   Linux Production Releases

     SDK and JRE 1.3.1_01 or earlier
     SDK and JRE 1.3.0_05 or earlier
     SDK and JRE 1.2.2_010 or earlier
     
   Releases prior to SDK and JRE 1.2.2, and JDK and JRE 1.1.8 for 
   Windows and Solaris are also affected and should no longer be used. 
   Users of these releases should upgrade to a later release listed in 
   Section 3.
   
   This vulnerability does not affect the Java 2 SDK, Standard Edition, 
   v 1.4.  
     
3. Latest Releases

   Windows Production Releases
   
     SDK and JRE 1.4                http://java.sun.com/j2se/1.4/
     SDK and JRE 1.3.1_02        http://java.sun.com/j2se/1.3/
     SDK and JRE 1.2.2_011        http://java.sun.com/j2se/1.2/
     JDK and JRE 1.1.8_009
       http://java.sun.com/products/jdk/1.1/download-jdk-windows.html
       
   Solaris OE Reference Releases
   
     SDK and JRE 1.2.2_011        http://java.sun.com/j2se/1.2/
     JDK and JRE 1.1.8_009   
       http://java.sun.com/products/jdk/1.1/download-jdk-solaris.html

   Solaris OE Production Releases
   
     SDK and JRE 1.4                http://java.sun.com/j2se/1.4/
     SDK and JRE 1.3.1_02        http://java.sun.com/j2se/1.3/
     SDK and JRE 1.2.2_11        http://java.sun.com/j2se/1.2/ 
     JDK and JRE 1.1.8_15
       http://java.sun.com/products/jdk/1.1/download-jdk-solaris.html
       
   Linux Production Releases
   
     SDK and JRE 1.4                http://java.sun.com/j2se/1.4/
     SDK and JRE 1.3.1_02        http://java.sun.com/j2se/1.3/
     SDK and JRE 1.2.2_011        http://java.sun.com/j2se/1.2/
__________________________________________________________________________
Sun acknowledges, with thanks, Trusted Logic S.A. for bringing this 
issue to our attention. 
__________________________________________________________________________
APPENDICES

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___________________________________________________________________________

Copyright 2002 Sun Microsystems, Inc. All rights reserved. Sun, 
Sun Microsystems, the Sun logo, Solaris, Java, and JDK are trademarks or 
registered trademarks of Sun Microsystems, Inc. in the United States and 
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and distribution is performed for non-commercial purposes.

[***** End Sun Security Bulletin #00218 *****]

_______________________________________________________________________________

CIAC wishes to acknowledge the contributions of Sun Microsystems, Inc. for the 
information contained in this bulletin.
_______________________________________________________________________________

CIAC, the Computer Incident Advisory Center, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
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