Note: This is an archival copy of Security Sun Alert 244991 as previously published on http://sunsolve.sun.com.|
Latest version of this security advisory is available from http://support.oracle.com as Sun Alert 1019741.1.
Date of Resolved Release
A Security Vulnerability in the Java Runtime Environment (JRE) Related to Deserializing Calendar Objects May Allow Privileges to be Escalated
A security vulnerability in the Java Runtime Environment (JRE) related to deserializing calendar objects may allow an untrusted applet or application to escalate privileges. For example, an untrusted 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.
Sun acknowledges with thanks, Sami Koivu 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 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 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).
There are no reliable symptoms that would indicate the described issue had been exploited.
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:
JRE 6 Update 11:
and through the Java Update tool for Microsoft Windows users.
JDK 6 Update 11 for Solaris is available in the following patches:
JDK 5.0 Update 17 for Solaris is available in the following patches:
Java SE for Business releases are available at:
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: 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 the 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.
Sun Java Standard Edition (Java SE)
This solution has no attachment