Note: This is an archival copy of Security Sun Alert 238967 as previously published on http://sunsolve.sun.com.|
Latest version of this security advisory is available from http://support.oracle.com as Sun Alert 1019375.1.
Date of Resolved Release
Security Vulnerability in the Java Runtime Environment Virtual Machine may allow an untrusted Application or Applet to elevate Privileges
A vulnerability in the Java Runtime Environment Virtual Machine may allow an untrusted application or applet that is downloaded from a website to elevate its privileges. For example, the application or applet may grant itself permissions to read and write local files or execute local applications that are accessible to the user running the untrusted application or applet.
Sun acknowledges with thanks, Fujitsu for bringing this issue to our attention.
2. Contributing Factors
This issue can occur in the following releases for Windows, Solaris, and Linux:
Note: SDK and JRE 1.3.x are not affected.
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
The example above indicates the version of the JRE that the browser uses is 1.5.0_11.
There are no predictable symptoms that would indicate the above issue has been exploited.
There is no workaround for this issue. Please see the Resolution section below.
This issue is addressed in the following releases for Windows, Solaris, and Linux:
JDK and JRE 6 Update 7 is available for download at the following links:
JRE 6 updates are available through the Java Update tool for Microsoft Windows users.
JDK 6 Update 7 for Solaris is available in the following patches:
JDK and JRE 5.0 Update 16 is available for download at the following link:
JDK 5.0 Update 16 for Solaris is available in the following patches:
SDK and JRE 1.4.2_18 is available for download at the following link:
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:
For more information
on Security Sun Alerts, see 1009886.1.
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