Oracle has released Sun Java SE 1.6.0_20 to address several vulnerabilities. The release notes for this version of Java SE indicate that these vulnerabilities are in Java Deployment Toolkit and the new Java Plug-in. Exploitation of these vulnerabilities may allow a remote, unauthenticated attacker to execute arbitrary code.
US-CERT encourages users and administrators to review the following documents and apply any necessary updates or workarounds to help mitigate the risks:
Please note that web browsers using the plug-in version of the Java Deployment Toolkit may not be properly updated. Users of these web browsers should follow the workaround provided in US-CERT Vulnerability Note VU#886582.