It was discovered that the IIOPInputStream class in the CORBA component of OpenJDK failed to properly check object and field types during object deserialization. An untrusted Java application or applet could use this flaw to bypass Java sandbox restrictions.
Public now via Oracle Critical Patch Update - October 2015. Fixed in Oracle Java SE 6u105, 7u91, and 8u65. External References: http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html#AppendixJAVA
This issue has been addressed in the following products: Red Hat Enterprise Linux 5 Via RHSA-2015:1921 https://rhn.redhat.com/errata/RHSA-2015-1921.html
This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 7 Via RHSA-2015:1920 https://rhn.redhat.com/errata/RHSA-2015-1920.html
This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 7 Via RHSA-2015:1919 https://rhn.redhat.com/errata/RHSA-2015-1919.html
This issue has been addressed in the following products: Oracle Java for Red Hat Enterprise Linux 7 Oracle Java for Red Hat Enterprise Linux 5 Oracle Java for Red Hat Enterprise Linux 6 Via RHSA-2015:1928 https://rhn.redhat.com/errata/RHSA-2015-1928.html
This issue has been addressed in the following products: Oracle Java for Red Hat Enterprise Linux 7 Oracle Java for Red Hat Enterprise Linux 6 Via RHSA-2015:1926 https://rhn.redhat.com/errata/RHSA-2015-1926.html
This issue has been addressed in the following products: Oracle Java for Red Hat Enterprise Linux 7 Oracle Java for Red Hat Enterprise Linux 5 Oracle Java for Red Hat Enterprise Linux 6 Via RHSA-2015:1927 https://rhn.redhat.com/errata/RHSA-2015-1927.html
OpenJDK8 upstream commit: http://hg.openjdk.java.net/jdk8u/jdk8u/corba/rev/d185c856ef85
This issue has been addressed in the following products: Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 7 Via RHSA-2015:2086 https://rhn.redhat.com/errata/RHSA-2015-2086.html