-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                    ESB-2007.0033 -- [Win][UNIX/Linux]
    Security Vulnerability in Processing GIF Images in the Java Runtime
      Environment May Allow an Untrusted Applet to Elevate Privileges
                              22 January 2007

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

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

Product:              Java 2 Platform, Standard Edition
                      JDK and JRE 5.0 Update 9 and prior
                      SDK and JRE 1.4.2_12 and prior
                      SDK and JRE 1.3.1_18 and prior
Publisher:            Sun Microsystems
Operating System:     Windows
                      UNIX variants (UNIX, Linux, OSX)
Impact:               Increased Privileges
Access:               Remote/Unauthenticated

Revision History:  January 22 2007: Impact section expanded
                   January 19 2007: Initial Release

- --------------------------BEGIN INCLUDED TEXT--------------------

Sun(sm) Alert Notification
     * Sun Alert ID: 102760
     * Synopsis: Security Vulnerability in Processing GIF Images in the
       Java Runtime Environment May Allow an Untrusted Applet to Elevate
       Privileges
     * Category: Security
     * Product: Java 2 Platform, Standard Edition
     * BugIDs: 6445518
     * Avoidance: Patch, Upgrade
     * State: Resolved
     * Date Released: 16-Jan-2007
     * Date Closed: 16-Jan-2007
     * Date Modified: 18-Jan-2007

1. Impact

   A buffer overflow vulnerability in processing GIF images 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 with the
   privileges of the user running the untrusted applet.

   Sun acknowledges with thanks, an anonymous researcher working with the
   Zero Day Initiative (http://www.zerodayinitiative.com/) and
   TippingPoint (http://www.tippingpoint.com) for bringing this issue
   to our attention.

   More information regarding this issue is available at:
     * ZDI advisory ZDI-07-005 at:
       http://www.zerodayinitiative.com/advisories/ZDI-07-005.html
     * CVE-2007-0234 at:
       http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0234

2. Contributing Factors

   This issue can occur in the following releases (for Windows, Solaris,
   and Linux):
     * JDK and JRE 5.0 Update 9 and earlier
     * SDK and JRE 1.4.2_12 and earlier
     * SDK and JRE 1.3.1_18 and earlier

   To determine the default version of the JRE on a system for Solaris
   and Linux, the following command can be run:
    % java -version

   Note: The above command only determines the default version. Other
   versions may also be installed on the system.

   To determine the default version of the JRE on a system for Windows:
    1. Click "Start"
    2. Select "Run"
    3. Type "cmd" (starts a command-line)
    4. At the prompt, type "java -version"

   Note: The above command only determines the default version. Other
   versions may also be installed on the system.

3. Symptoms

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

4. Relief/Workaround

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

5. Resolution

   This issue is addressed in the following releases (for Windows,
   Solaris, and Linux):
     * JDK and JRE 5.0 Update 10 or later
     * SDK and JRE 1.4.2_13 or later
     * SDK and JRE 1.3.1_19 or later

   J2SE 5.0 is available for download at the following links:
     * http://java.sun.com/javase/downloads/index_jdk5.jsp
     * http://java.com

   J2SE 5.0 Update 10 for Solaris is available in the following patches:
     * J2SE 5.0: update 10 (as delivered in patch 118666-10)
     * J2SE 5.0: update 10 (as delivered in patch 118667-10 (64bit))
     * J2SE 5.0_x86: update 10 (as delivered in patch 118668-10)
     * J2SE 5.0_x86: update 10 (as delivered in patch 118669-10
       (64bit))

   J2SE 1.4.2 is available for download at:
     * http://java.sun.com/j2se/1.4.2/download.html

   J2SE 1.3.1 is available for download at:
     * http://java.sun.com/j2se/1.3/download.html

   Note: When installing a new version of the product from a source other
   than a Solaris patch, it is recommended that the old affected versions
   be removed from your system. For more information, please see the
   installation notes on the respective java.sun.com download pages.

Change History

   18-Jan-2007:
     * Updated Impact section

   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 2000-2006 Sun Microsystems, Inc., 4150 Network Circle, Santa
   Clara, CA 95054 U.S.A. All rights reserved

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        http://www.auscert.org.au/render.html?cid=1980

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================

-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967

iQCVAwUBRbQ9oyh9+71yA2DNAQKkAAP+LEJh81xY/wYlJ7Dpt05l1zf7JTmzuo8A
QrMADs9zZX30/dLrrfZRxx+qjIGdUUd3CGSYOCFqtcN1wD6j7zUkCylqABxkNcjk
81AeLpW7AZdAOqs25T0eMrnKO4e8Ry+GQAjOAJFHajFlud8YDsUSPWeeenu/6LK7
2TfOQZAiyno=
=jjV0
-----END PGP SIGNATURE-----