Security Vulnerability in the Java Runtime Environment With Processing RSA Public Keys

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A security vulnerability in the Java Runtime Environment (JRE) with processing of RSA public keys:

1. Impact

A vulnerability in how the Java Runtime Environment (JRE) handles certain RSA public keys may cause the JRE to consume an excessive amount of CPU resources.  This may lead to a Denial of Service (DoS) condition on affected systems.  Such keys could be provided by a remote client of an application.

2. Contributing Factors

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

• JDK and JRE 6 Update 10 or earlier
• JDK and JRE 5.0 Update 16 or earlier

Note: SDK and JRE 1.4.x and 1.3.x are not affected by this issue.

To determine the version of Java installed on a system, the following command can be used:

    % *java -version*
    java version "1.5.0_14"

3. Symptoms

If the described issue occurs, the system that the JRE runs on may become unresponsive.

4. Workaround

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

5. Resolution

This issue is addressed in the following Java SE and Java SE for Business releases for Solaris, Windows and Linux:

• JDK and JRE 6 Update 11 or later
  
• JDK and JRE 5.0 Update 17 or later

Java SE releases are available at:

JDK 6 Update 11: 

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

JRE 6 Update 11:

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

and through the Java Update tool for Microsoft Windows users.

JDK 6 Update 11 is also available for Solaris in the following patches:

• Java SE 6: update 11 (as delivered in patch 125136-12)
  
• Java SE 6: update 11 (as delivered in patch 125137-12 (64bit))
• Java SE 6_x86: update 11 (as delivered in patch 125138-12)
• Java SE 6_x86: update 11 (as delivered in patch 125139-12 (64bit))

JDK and JRE 5.0 Update 17:

• http://java.sun.com/javase/downloads/index_jdk5.jsp

JDK 5.0 Update 17 is also available for Solaris in the following patches:

• J2SE 5.0: update 17 (as delivered in patch 118666-18)
  
• J2SE 5.0: update 17 (as delivered in patch 118667-18 (64bit))
  
• J2SE 5.0_x86: update 17 (as delivered in patch 118668-18)
  
• J2SE 5.0_x86: update 17 (as delivered in patch 118669-18 (64bit))
  

Java SE for Business Releases:

• http://www.sun.com/software/javaseforbusiness/getit_download.jsp
  

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

• http://java.com/en/download/help/uninstall_java.xml
  

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.

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