This update corrects several security vulnerabilities in the IBM Java Runtime Environment shipped as part of Red Hat Network Satellite Server 5.4, 5.5, and 5.6. In a typical operating environment, these are of low security risk as the runtime is not used on untrusted applets. Several flaws were fixed in the IBM Java 2 Runtime Environment. Users of Red Hat Network Satellite Server 5.4, 5.5, and 5.6 are advised to upgrade to these updated packages, which contain the IBM Java SE 6 SR16 release. For this update to take effect, Red Hat Network Satellite Server must be restarted , as well as all running instances of IBM Java.