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AL-2007-0071.txt

AL-2007-0071.txt
Posted Jul 13, 2007
Site auscert.org

AUSCERT ALERT - A buffer overflow vulnerability in the image parsing code in the Java Runtime Environment may allow an untrusted applet or application 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. A second vulnerability may allow an untrusted applet or application to cause the Java Virtual Machine to hang. The first vulnerability affects JDK and JRE 6, JDK and JRE 5.0 Update 10 and earlier, SDK and JRE 1.4.2_14 and earlier, and SDK and JRE 1.3.1_20 and earlier. The second vulnerability affects JDK and JRE 6, JDK and JRE 5.0 Update 10 and earlier, SDK and JRE 1.4.2_14 and earlier, and SDK and JRE 1.3.1_19 and earlier.

tags | advisory, java, overflow, local
advisories | CVE-2007-2788, CVE-2007-2789
SHA-256 | b4e7bf595970ae7065a98357807cb501af2b46b0055a9e2bde3fd8e57b04a001

AL-2007-0071.txt

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===========================================================================
A U S C E R T A L E R T

AL-2007.0071 -- AUSCERT ALERT
[Win][Linux][Solaris]
Sun Java Runtime Environment vulnerability allows remote compromise
12 July 2007

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

AusCERT Alert Summary
---------------------

Product: Sun Java Runtime Environment (JRE) 6
Sun Java Runtime Environment (JRE) 5.0 Update 10 and prior
Sun Java Runtime Environment (JRE) 1.4.2_14 and prior
Sun Java Runtime Environment (JRE) 1.3.1_20 and prior
Sun Java Development Kit 6
Sun Java Development Kit 5.0 Update 10 and prior
Sun Java Software Development Kit 1.4.2_14 and prior
Sun Java Software Development Kit 1.3.1_20 and prior
Publisher: Sun Microsystems
Operating System: Windows
Linux variants
Solaris
Impact: Execute Arbitrary Code/Commands
Access: Remote/Unauthenticated
CVE Names: CVE-2007-2789 CVE-2007-2788

Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102934-1

Comment: Similar JRE vulnerabilities have previously been actively exploited
by attackers to compromise workstations by enticing users to visit
a web page containing a malicious Java applet.

Revision History: July 12 2007: CVE names added
July 2 2007: Patches released for SDK and JRE 1.4.2_15
June 4 2007: Initial Release

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

Sun(sm) Alert Notification
* Sun Alert ID: 102934
* Synopsis: Security Vulnerabilities in the Java Runtime Environment
Image Parsing Code May Allow a Untrusted Applet to Elevate
Privileges
* Category: Security
* Product: Java 2 Platform, Standard Edition
* BugIDs: 6483556, 6483560
* Avoidance: Patch, Upgrade
* State: Resolved
* Date Released: 31-May-2007, 29-Jun-2007
* Date Closed: 29-Jun-2007
* Date Modified: 29-Jun-2007, 10-Jul-2007

1. Impact

A buffer overflow vulnerability in the image parsing code in the Java
Runtime Environment may allow an untrusted applet or application 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.

A second vulnerability may allow an untrusted applet or application to
cause the Java Virtual Machine to hang.

Sun acknowledges, with thanks, Chris Evans of the Google Security
Team, for bringing these issues to our attention.

These issues are also referenced in the following documents:

CVE-2007-2788 at
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2788

CVE-2007-2789 at
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2789

2. Contributing Factors

These issues can occur in the following releases (for Windows,
Solaris, and Linux):

First vulnerability:
* JDK and JRE 6
* JDK and JRE 5.0 Update 10 and earlier
* SDK and JRE 1.4.2_14 and earlier
* SDK and JRE 1.3.1_20 and earlier

Second vulnerability:
* JDK and JRE 6
* JDK and JRE 5.0 Update 10 and earlier
* SDK and JRE 1.4.2_14 and earlier
* SDK and JRE 1.3.1_19 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 show the described issues
have been exploited.

4. Relief/Workaround

There is no workaround for this issue. Please see the Resolution
section below.

5. Resolution

The first issue is addressed in the following releases (for Windows,
Solaris, and Linux):
* JDK and JRE 6 Update 1 or later
* JDK and JRE 5.0 Update 11 or later
* SDK and JRE 1.4.2_15 and later

The second issue is addressed in the following releases (for Windows,
Solaris, and Linux):
* JDK and JRE 6 Update 1 or later
* JDK and JRE 5.0 Update 11 or later
* SDK and JRE 1.4.2_15 and later
* SDK and JRE 1.3.1_20 or later

Java SE 6 Update 1 is available for download at the following link:

http://java.sun.com/javase/downloads/index.jsp

Java SE 6 Update 1 for Solaris is available in the following patches:
* Java SE 6: update 1 (as delivered in patch 125136-01)
* Java SE 6: update 1 (as delivered in patch 125137-01 (64bit))
* Java SE 6_x86: update 1 (as delivered in patch 125138-01)
* Java SE 6_x86: update 1 (as delivered in patch 125139-01
(64bit))

J2SE 5.0 is available for download at the following link:

http://java.sun.com/j2se/1.5.0/download.jsp

J2SE 5.0 Update 11 for Solaris is available in the following patches:
* J2SE 5.0: update 11 (as delivered in patch 118666-11)
* J2SE 5.0: update 11 (as delivered in patch 118667-11 (64bit))
* J2SE 5.0_x86: update 11 (as delivered in patch 118668-11)
* J2SE 5.0_x86: update 11 (as delivered in patch 118669-11
(64bit))

SDK and JRE 1.4.2_15 is available for download at:

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

J2SE 1.3.1_20 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

29-Jun-2007:
* State: Resolved
* Updated Resolution section

10-Jul-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.
===========================================================================

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