In the new version of the February 2013 Critical Patch Update will include additional fixes.
Updates for Java, Oracle released on February 1 of this year, as it turned out, did not remove all the vulnerability. In this regard, on February 19 will be issued a new update, as previously planned.
Due to the discovery of exploits for vulnerabilities Java, updates were quickly released at unscheduled times. Expert Company, Eric Maurice has published a blog post: “Oracle plans to release the February version of critical updates to the original scheduled date.”
Since August 2012, when the first reports appeared that vulnerabilities in Java extensively used by malicious web-sites, Oracle is struggling to regain the trust of users.
Researchers reported that significant differences for new updates to updates released on February 1, will not, however, in February 2013 Critical Patch Update will include even more corrections.
Output following the February update is scheduled for June 18, 2013.
Link: https://blogs.oracle.com/security/entry/updates_to_february_2013_critical