The default Java security properties configuration did not restrict access to the com.sun.org.glassfish.external and com.sun.org.glassfish.gmbal packages. An untrusted Java application or applet could use these flaws to bypass Java sandbox restrictions. This update lists those packages as restricted in the java.security file. Note that the addition of the mentioned packages to the package.access properly list is tracked under CVE-2012-5076 and CVE-2012-5074 (see also bug 865352).
Fixed now in Oracle JDK 7u9. External Reference: http://www.oracle.com/technetwork/topics/security/javacpuoct2012-1515924.html
This issue has been addressed in following products: Red Hat Enterprise Linux 6 Via RHSA-2012:1386 https://rhn.redhat.com/errata/RHSA-2012-1386.html
Fix included in IcedTea7 versions 2.1.3, 2.2.3 and 2.3.3: http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2012-October/020571.html http://icedtea.classpath.org/hg/release/icedtea7-forest-2.3/jdk/rev/f2bae6dacc05
This issue has been addressed in following products: Supplementary for Red Hat Enterprise Linux 6 Via RHSA-2012:1391 https://rhn.redhat.com/errata/RHSA-2012-1391.html
This issue has been addressed in following products: Supplementary for Red Hat Enterprise Linux 6 Via RHSA-2012:1467 https://rhn.redhat.com/errata/RHSA-2012-1467.html