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                                  CERT-Renater

                       Note d'Information No. 2005/VULN379
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DATE                      : 15/06/2005

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Systems running J2SE 5.0, J2SE 5.0 Update 1,
                                 J2SE 1.4.2_07 and earlier 1.4.2 releases.

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Sun(sm) Alert Notification
      * Sun Alert ID: 101749
      * Synopsis: Security Vulnerability With Java Runtime Environment May
        Allow Untrusted Applet to Elevate Privileges
      * Category: Security
      * Product: Java 2 Platform, Standard Edition 5.0 Software
      * BugIDs: 6224433, 6224438
      * Avoidance: Upgrade
      * State: Resolved
      * Date Released: 13-Jun-2005
      * Date Closed: 13-Jun-2005
      * Date Modified:

1. Impact

    A vulnerability in the Java Runtime Environment may allow an untrusted
    applet to elevate its privileges. For example, an applet may grant
    itself permissions to read and write local files or execute local
    applications that are accessible to the user running the untrusted
    applet.

    Sun acknowledges, with thanks, Adam Gowdiak, for bringing this issue
    to our attention.

2. Contributing Factors

    This issue can occur in the following releases:
      * Java 2 Platform, Standard Edition(J2SE) 5.0 and 5.0 Update 1 for
        Windows, Solaris and Linux
      * J2SE 1.4.2_07 and earlier 1.4.2 releases for Windows, Solaris and
        Linux

    Note: J2SE 1.3.1_xx releases for Windows, Solaris and Linux are not
    affected.

    To determine the version of Java on a system, the following command
    can be run:
     % java -fullversion
     java full version "1.5.0_02-b09"


3. Symptoms

    There are no reliable symptoms that would indicate the described issue
    has been exploited.

4. Relief/Workaround

    There is no workaround for this issue.

5. Resolution

    This issue is addressed in the following releases:
      * Java 2 Platform, Standard Edition(J2SE) 5.0 Update 2 and later for
        Windows, Solaris, and Linux
      * J2SE 1.4.2_08 and later for Windows, Solaris, and Linux

    J2SE 5.0 and 1.4.2 are available for download at the following links:

    5.0 at: http://java.sun.com/j2se/1.5.0/download.jsp and http://java.com

    1.4.2 at: http://java.sun.com/j2se/1.4.2/download.html

    Note: It is recommended that affected versions be removed from your
    system. For more information, please see the installation notes on the
    respective java.sun.com download pages.

    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 2000-2005 Sun Microsystems, Inc., 4150 Network Circle, Santa
    Clara, CA 95054 U.S.A. All rights reserved

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         Les serveurs de référence du CERT-Renater
         http://www.urec.fr/securite
         http://www.cru.fr/securite
         http://www.renater.fr
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         + CERT-RENATER          | tel : 01-53-94-20-44          +
         + 151 bd de l'Hopital   | fax : 01-53-94-20-41          +
         + 75013 Paris           | email: certsvp@renater.fr     +
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