Oracle has released Java 7 Update 11 to address the latest Java security flaw. Java 6 was not updated as the bug that has gotten all the attention the last few days was limited to Java version 7.
Java 7 is available on Windows, OS X Lion, OS X Mountain Lion and some Linux distributions. OS X Snow Leopard is limited to Java version 6.
Everyone with Java 7 installed on their computer should upgrade to to the latest edition, Update 11. It can be downloaded at java.com/en/download/manual.jsp.
Java 7 Update 10 introduced a new feature that can totally disable Java in all browsers. This should protect anyone running Update 10 from the latest flaw, but nonetheless, installing Update 11 is the safer way to go.
You can see which version of Java, if any, that your web browser is using at my javatester.org site.
For more, see How to be as safe as possible with Java.
UPDATE: After the first story on 60 Minutes tonight (Jan. 13th) there was a brief segment from CBS news where they announced that Oracle would have a fix for Java by Tuesday. Really, CBS? The updated Java was released well before the announcement (which aired at roughly 8:26pm ET).