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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
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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
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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
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