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Sun Security Bulletin: Potential security issue in [Java] class loading

Nov 30, 2000, 21:37 (0 Talkback[s])
Date: Wed, 29 Nov 2000 21:47:12 -0700
From: blb@DELENN.WITHAY.COM
To: BUGTRAQ@SECURITYFOCUS.COM
Subject: Sun Security Bulletin #00199
________________________________________________________________________________

                   Sun Microsystems, Inc. Security Bulletin

Bulletin Number:        #00199
Date:                   November 29, 2000
Cross-Ref:
Title:                  Potential security issue in class loading
________________________________________________________________________________

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

   Under certain circumstances, the Java(TM) Runtime Environment may allow
   an untrusted Java class to call into a disallowed class. This is a
   potential security issue.

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

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

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

2. Affected Releases

   The following releases are affected:

     Windows Production and Solaris(TM) Reference Releases

     JDK/JRE 1.2.2_004 or earlier
     JDK/JRE 1.2.1_003 or earlier
     JDK/JRE 1.1.8_002 or earlier
     JDK/JRE 1.1.7B_005 or earlier
     JDK/JRE 1.1.6_007 or earlier

     Solaris Production Releases

     JDK/JRE 1.2.2_05 or earlier
     JDK/JRE 1.2.1
     JDK/JRE 1.1.8_10 or earlier
     JDK/JRE 1.1.7B
     JDK/JRE 1.1.6

     Linux Production Release

     JDK/JRE 1.2.2_005 or earlier

   Solaris Production releases JDK/JRE 1.2.1, 1.1.7B, and 1.1.6 should no
   longer be used. In addition, releases prior to JDK/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 Standard Edition SDK v 1.3.

   The HotSpot(TM) 1.0 and 1.0.1 virtual machines are affected by this
   vulnerability. HotSpot 2.0 is not affected by this vulnerability.
   HotSpot 1.0 and 1.0.1 virtual machines should no longer be used.
   Users that cannot move to Java 2 Standard Edition SDK v 1.3 should revert
   to the Classic virtual machine in JDK/JRE 1.2.2_006 (Windows or Solaris
   reference).  Those users wishing to take advantage of the performance
   of HotSpot 2.0 should migrate to Java 2 Standard Edition SDK v 1.3.0.

3. Binary Update Releases

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

   Windows Production and Solaris Reference Releases

   JDK/JRE 1.2.2_006    http://java.sun.com/products/jdk/1.2/
   JDK/JRE 1.2.1_004    http://java.sun.com/products/jdk/1.2.1/
   JDK/JRE 1.1.8_005    http://java.sun.com/products/jdk/1.1/
   JDK/JRE 1.1.7B_007   http://java.sun.com/products/jdk/1.1.7B/
   JDK/JRE 1.1.6_009    http://java.sun.com/products/jdk/1.1.6/

   Solaris Production Releases

   JDK/JRE 1.2.2_06     http://www.sun.com/software/solaris/java/download.html
   JDK/JRE 1.1.8_12     http://www.sun.com/software/solaris/java/archive.html

   Linux Production Release

   JDK/JRE 1.2.2_006    http://java.sun.com/products/jdk/1.2/download-linux.html

_______________________________________________________________________________
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 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 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
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.