-----BEGIN PGP SIGNED MESSAGE-----

________________________________________________________________________________
                   Sun Microsystems, Inc. Security Bulletin

Bulletin Number:        #00201
Date:                   February 21, 2001
Cross-Ref:
Title:                  Java Runtime Environment unauthorized command execution
________________________________________________________________________________

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. Background

   A vulnerability in certain versions of the Java(TM) Runtime Environment
   may allow malicious Java code to execute unauthorized commands. However,
   permission to execute at least one command must have been granted in order
   for this vulnerability to be exploited. Since no permission is granted
   by default, the circumstances necessary to exploit this vulnerability
   are relatively rare. In the Java Development Kit 1.1.x (JDK(TM) 1.1.x)
   (browsers included), an applet must be signed to have execute permission
   (signed applets may execute anything in JDK 1.1.x.)

   This issue may or may not affect other vendors' Java technology
   implementations which are derived from Sun's JDK source base.
   Sun has notified and made the remedy available to its Java licensees.

   To the best of Sun's knowledge, Netscape Navigator(TM) and Microsoft
   Internet Explorer are not exposed to this vulnerability.

   Sun recommends that you upgrade to the latest JDK and JRE releases
   listed in section 3 of this bulletin.


2. Affected Releases

   The following releases are affected:

     Windows Production and Solaris(TM) Reference Releases

     SDK and JRE 1.2.2_005 or earlier
     SDK and JRE 1.2.1_003 or earlier
     JDK and JRE 1.1.8_003 or earlier
     JDK and JRE 1.1.7B_005 or earlier
     JDK and JRE 1.1.6_007 or earlier

     Solaris Production Releases

     SDK and JRE 1.2.2_05a or earlier
     SDK and JRE 1.2.1
     JDK and JRE 1.1.8_10 or earlier
     JDK and JRE 1.1.7B
     JDK and JRE 1.1.6

     Linux Production Release

     SDK and JRE 1.2.2_005 or earlier

   Solaris Production releases SDK and JRE 1.2.1, and JDK and JRE 1.1.7B
   and 1.1.6 should no longer be used. In addition, releases prior to
   JDK and JRE 1.1.6 for Windows or Solaris should no longer be used.
   Users of these releases should upgrade to a later release listed in
   Section 3.

   This vulnerability was fixed in Java 2 Platform, Standard Edition, v 1.3.


3. Binary Update Releases

   The following update releases are available in relation to this issue.

   Windows Production and Solaris Reference Releases

   SDK and JRE 1.2.2_007        http://java.sun.com/products/jdk/1.2/
   SDK and JRE 1.2.1_004        http://java.sun.com/products/jdk/1.2.1/
   JDK and JRE 1.1.8_006        http://java.sun.com/products/jdk/1.1/
   JDK and JRE 1.1.7B_007       http://java.sun.com/products/jdk/1.1.7B/
   JDK and JRE 1.1.6_009        http://java.sun.com/products/jdk/1.1.6/

   Solaris Production Releases

   SDK and JRE 1.2.2_07 http://www.sun.com/software/solaris/java/download.html
   JDK and JRE 1.1.8_12 http://www.sun.com/software/solaris/java/archive.html

   Linux Production Release

   SDK and JRE 1.2.2_007
http://java.sun.com/products/jdk/1.2/download-linux.html

_______________________________________________________________________________
Sun acknowledges, with thanks, Pascal Brisset for bringing this issue to
our attention.
_______________________________________________________________________________
APPENDICES

A.  Sun security bulletins are available at:

    http://sunsolve.sun.com/security
        
B.  Sun Security Coordination Team's PGP key is available at:

    http://sunsolve.sun.com/pgpkey.txt
                
C.  To report or inquire about a security problem with Sun(TM) 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

D.  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 2001 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
other countries. Netscape Navigator is a trademark or registered trademark of
Netscape Communications Corporation 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.

-----BEGIN PGP SIGNATURE-----
Version: 2.6.2

iQCVAwUBOpPwWLdzzzOFBFjJAQFENgP+PuLcmM4o1cRNxx15rWoi+KdhMRpErQeD
T1r+CPwEAyZb1weHwyZEFnN702rq9L6XH4UUPX1z9lb8Yl+hTpaUVth+5hyYbCd5
BC+2Mr9AuXysG07lp8Kx6k14NYqDJWa9sAyLGqcaoA8phWcfJO7ZMH65cVc+LZ2E
5E8UEsyFihI=
=nKYv
-----END PGP SIGNATURE-----