Oracle released Java 6 Update 43 and Java 7 Update 17 on March 4. Oracle strongly advises Java 6 and Java 7 customers to apply the applicable update as soon as possible.
See www.oracle.com/technetwork/topics/security/alert-cve-2013-1493-1915081.html for more information.
Oracle also announced Java 6 Update 43 would be the last publicly available update for Java 6. Oracle advised Java 6 users to upgrade to Java 7.