Not to be left out of today’s patching frenzy, Oracle (who recently acquired Sun) has released a new version of its Java system, Version 6 Update 19. This update fixes 27 different security vulnerabilities, as outlined in the Critical Patch Update Advisory. The new version, available for Windows, Linux, and Solaris, can be downloaded here. Note that there are various versions of the software available: most users will need the Java Runtime Environment [JRE], in order to run applications and browser applets written in Java. You need the Java Development Kit [JDK] only if you are yourself developing Java applications.
Mac users should note that the omission of Mac OS X in the list of platforms above is not an accident. Apple provides its own version of Java, and it seems to take them a few months to incorporate updates.