A flaw was found in the privileged code used to handle unreferenced objects in the Target class in the RMI component of OpenJDK. An untrusted Java application or applet could use this flaw to bypass Java sandbox restrictions.
Public now via Oracle CPU October 2017: http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html#AppendixJAVA The issue was fixed in Oracle JDK 9.0.1, 8u151, 7u161, and 6u171.
OpenJDK-8 upstream commit: http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/0c7e380005ee
This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 7 Via RHSA-2017:2998 https://access.redhat.com/errata/RHSA-2017:2998
This issue has been addressed in the following products: Oracle Java for Red Hat Enterprise Linux 6 Oracle Java for Red Hat Enterprise Linux 7 Via RHSA-2017:2999 https://access.redhat.com/errata/RHSA-2017:2999
This issue has been addressed in the following products: Oracle Java for Red Hat Enterprise Linux 6 Oracle Java for Red Hat Enterprise Linux 7 Via RHSA-2017:3047 https://access.redhat.com/errata/RHSA-2017:3047
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-2017:3046 https://access.redhat.com/errata/RHSA-2017:3046
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Supplementary Via RHSA-2017:3264 https://access.redhat.com/errata/RHSA-2017:3264
This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Supplementary Via RHSA-2017:3267 https://access.redhat.com/errata/RHSA-2017:3267
This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Supplementary Red Hat Enterprise Linux 7 Supplementary Via RHSA-2017:3268 https://access.redhat.com/errata/RHSA-2017:3268
This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 7 Via RHSA-2017:3392 https://access.redhat.com/errata/RHSA-2017:3392
This issue has been addressed in the following products: Red Hat Satellite 5.8 Red Hat Satellite 5.8 ELS Via RHSA-2017:3453 https://access.redhat.com/errata/RHSA-2017:3453