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             AUSCERT External Security Bulletin Redistribution

                ESB-2003.0739 -- Sun(sm) Alert Notification
    Sun Alert ID: 57221 - A Vulnerability in JRE May Allow an Untrusted
                       Applet to Escalate Privileges
                              23 October 2003

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

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:                Java JRE/SDK
Publisher:              Sun Microsystems
Operating System:       Solaris
                        Linux
                        Windows
Impact:                 Increased Privileges
Access Required:        Remote

Original bulletin:

         http://sunsolve.sun.com/pub-cgi/retrieve.pl?doc=fsalert%2F57221

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   DOCUMENT ID: 57221
   SYNOPSIS: A Vulnerability in JRE May Allow an Untrusted Applet to
   Escalate Privileges
   DETAIL DESCRIPTION:
   
Sun(sm) Alert Notification

     * Sun Alert ID: 57221
     * Synopsis: A Vulnerability in JRE May Allow an Untrusted Applet to
       Escalate Privileges
     * Category: Security
     * Product: Java JRE/SDK
     * BugIDs: 4875641
     * Avoidance: Upgrade
     * State: Resolved
     * Date Released: 22-Oct-2003
     * Date Closed: 22-Oct-2003
     * Date Modified:
       
1. Impact

   A vulnerability in the Java Runtime Environment (JRE) classloader may
   allow an untrusted applet to escalate privileges.
   
   Sun acknowledges, with thanks, Last Stage of Delirium, for bringing
   this issue to our attention. For more information, see the LSD website
   at [1]http://lsd-pl.net.
   
2. Contributing Factors

   This issue can occur in the following releases:
   
   Windows Production Releases
     * SDK and JRE 1.4.1_03 and earlier
     * SDK and JRE 1.3.1_08 and earlier
     * SDK and JRE 1.2.2_015 and earlier
       
   Solaris Operating Environment (OE) Reference Releases
     * SDK and JRE 1.2.2_015 and earlier
       
   Solaris OE Production Releases
     * SDK and JRE 1.4.1_03 and earlier
     * SDK and JRE 1.3.1_08 and earlier
     * SDK and JRE 1.2.2_015 and earlier
       
   Linux Production Releases
     * SDK and JRE 1.4.1_03 and earlier
     * SDK and JRE 1.3.1_08 and earlier
     * SDK and JRE 1.2.2_015 and earlier
       
   Note: SDK and JRE 1.4.2 and later releases for Windows, Linux, and
   Solaris are not affected.
   
3. Symptoms

   There are no symptoms that would indicate the described issue has been
   exploited.
   SOLUTION SUMMARY:
   
4. Relief/Workaround

   There is no workaround. Please see the "Resolution" section below.
   
5. Resolution

   This issue is addressed in the following releases:
   
   Windows Production Releases
     * SDK and JRE 1.4.1_04 and later
     * SDK and JRE 1.3.1_09 and later
     * SDK and JRE 1.2.2_016 and later
       
   Solaris Operating Environment (OE) Reference Releases
     * SDK and JRE 1.2.2_016 and later
       
   Solaris OE Production Releases
     * SDK and JRE 1.4.1_04 and later
     * SDK and JRE 1.3.1_09 and later
     * SDK and JRE 1.2.2_016 and later
       
   Linux Production Releases
     * SDK and JRE 1.4.1_04 and later
     * SDK and JRE 1.3.1_09 and later
     * SDK and JRE 1.2.2_016 and later
       
   SDK and JRE releases are available at: [2]http://java.sun.com/j2se/
   
   This Sun Alert notification is being provided to you on an "AS IS"
   basis. This Sun Alert notification may contain information provided by
   third parties. The issues described in this Sun Alert notification may
   or may not impact your system(s). Sun makes no representations,
   warranties, or guarantees as to the information contained herein. ANY
   AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
   WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
   NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT
   YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT,
   INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE
   OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN.
   This Sun Alert notification contains Sun proprietary and confidential
   information. It is being provided to you pursuant to the provisions of
   your agreement to purchase services from Sun, or, if you do not have
   such an agreement, the Sun.com Terms of Use. This Sun Alert
   notification may only be used for the purposes contemplated by these
   agreements.
   
   Copyright 2000-2003 Sun Microsystems, Inc., 4150 Network Circle, Santa
   Clara, CA 95054 U.S.A. All rights reserved.
   

References

   1. http://lsd-pl.net/
   2. http://java.sun.com/j2se/

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