Note: This is an archival copy of Security Sun Alert 246346 as previously published on http://sunsolve.sun.com.|
Latest version of this security advisory is available from http://support.oracle.com as Sun Alert 1019797.1.
Date of Resolved Release
A security vulnerability in the Java Runtime Environment (JRE) with authenticating users through Kerberos:
A security vulnerability in the Java Runtime Environment (JRE) with authenticating users through Kerberos may lead to a Denial of Service (DoS) to the system as a whole, due to excessive consumption of operating system resources.
Sun acknowledges, with thanks, Jan Grant of Bristol University for bringing this issue to our attention.
2. Contributing Factors
This issue can occur in the following Java SE and Java SE for Business releases for Solaris, Windows and Linux:
To determine the version of Java installed on a system, the following command can be used:
% *java -version*To determine the default version of the JRE that Internet Explorer uses:
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 shown in the following example:
Java(TM) Plug-in 1.5.0_11-b03(Indicating that the JRE version the browser uses is 1.5.0_11)
If the described issue occurs, the system that the JRE runs on may be unresponsive.
There is no workaround for this issue. Please see the Resolution section below.
This issue is addressed in the following Java SE and Java SE for Business releases for Solaris, Windows and Linux:
JDK 6 Update 11:
Java Update tool for Microsoft Windows users.
JDK 6 Update 11 is also available for Solaris in the following patches:
is also available for Solaris in the following patches:
Java SE for Business Releases:
Note 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.
Note 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 1009886.1.
Copyright 2000-2008 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved.
Java Platform, Standard Edition 6 (Java SE 6)
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