Security Vulnerabilities in the Java Runtime Environment (JRE) With Storing and Processing Font Files May Allow Denial of Service (DOS)

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Security Vulnerabilities in the Java Runtime Environment (JRE) With Storing and Processing Font Files May Allow Denial of Service (DOS)

1. Impact

Two security vulnerabilities in the Java Runtime Environment (JRE) with storing and processing temporary font files may allow an untrusted applet or Java Web Start application to consume a disproportionate amount of disk space resulting in a Denial of Service (DoS) condition.

Sun acknowledges with thanks, Marc Schoenefeld for bringing the first issue to our attention.

2. Contributing Factors

These issues can occur in the following Java SE and Java SE for Business releases for Windows, Solaris, and Linux:

• JDK and JRE 6 Update 12 and earlier
• JDK and JRE 5.0 Update 17 and earlier

and the following Java SE for Business releases for Windows, Solaris, and Linux:

• SDK and JRE 1.4.2_19 and earlier

Note: SDK and JRE 1.3.1 are not affected by these issues.

To determine the default version of the JRE that Internet Explorer uses, visit the URL:


To determine the default version of the JRE that Mozilla or Firefox browsers use, visit the URL "about:plugins".

The browser will display a page called "Installed plug-ins" which lists the version of the Java Plug-in, as in the following example:


The above example indicates the version of the JRE that the browser uses is version 6 Update 11.

3. Symptoms

For both issues, the system may become unresponsive due to high disk space utilization.

4. Workaround

There are no workarounds for these issues. Please see the "Resolution" section below.

5. Resolution

These issues are addressed in the following Java SE and Java SE for Business releases for Windows, Solaris, and Linux:

• JDK and JRE 6 Update 13 or later
• JDK and JRE 5.0 Update 18 or later

and in the following Java SE for Business release for Windows, Solaris, and Linux:


Java SE releases are available at:

JDK and JRE 6 Update 13:


JRE 6 Update 13:


Through the Java Update tool for Microsoft Windows users

JDK 6 Update 13 for Solaris is available in the following patches:

• Java SE 6 Update 13 (as delivered in patch 125136-14 or later)
• Java SE 6 Update 13 (as delivered in patch 125137-14 or later (64bit))
• Java SE 6 x86 Update 13 (as delivered in patch 125138-14 or later)
• Java SE 6 x86 Update 13 (as delivered in patch 125139-14 or later (64bit))

JDK and JRE 5.0 Update 18:


JDK 5.0 Update 18 for Solaris is available in the following patches:

• J2SE 5.0 Update 18 (as delivered in patch 118666-19 or later)
• J2SE 5.0 Update 18 (as delivered in patch 118667-19 or later (64bit))
• J2SE 5.0 x86 Update 18 (as delivered in patch 118668-19 or later)
• J2SE 5.0 x86 Update 18 (as delivered in patch 118669-19 or later (64bit))

Java SE for Business releases are available at:


Notes:

1. Java SE releases SDK and JRE 1.4.2 have completed the Sun End of Service Life (EOSL) process. Sun recommends that users upgrade to the latest Java SE release. Customers interested in continuing to receive critical fixes on SDK and JRE 1.4.2 are encouraged to migrate to Java SE for Business.

2. 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. To remove old affected versions on the Windows platform, please see:


For more information on Security Sun Alerts, see Technical Instruction ID 213557.

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 2000-2009 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved.




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