It was discovered that MethodUtil's trampoline class did not properly restrict the invokation of certain methods. An untrusted Java application or applet could possibly use this flaw to bypass Java sandbox restrictions.
Public now via Oracle Java SE CPU April 2014: http://www.oracle.com/technetwork/topics/security/javacpuapr2013-1928497.html Fixed in Oracle Java SE 7u21 and 6u45.
This issue has been addressed in following products: Red Hat Enterprise Linux 5 Via RHSA-2013:0752 https://rhn.redhat.com/errata/RHSA-2013-0752.html
This issue has been addressed in following products: Red Hat Enterprise Linux 6 Via RHSA-2013:0751 https://rhn.redhat.com/errata/RHSA-2013-0751.html
OpenJDK7 upstream repositories commit: http://hg.openjdk.java.net/jdk7u/jdk7u-dev/jdk/rev/2899c3dbf5e8
This issue has been addressed in following products: Supplementary for Red Hat Enterprise Linux 6 Supplementary for Red Hat Enterprise Linux 5 Via RHSA-2013:0758 https://rhn.redhat.com/errata/RHSA-2013-0758.html
This issue has been addressed in following products: Supplementary for Red Hat Enterprise Linux 5 Supplementary for Red Hat Enterprise Linux 6 Via RHSA-2013:0757 https://rhn.redhat.com/errata/RHSA-2013-0757.html
This issue has been addressed in following products: Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 Via RHSA-2013:0770 https://rhn.redhat.com/errata/RHSA-2013-0770.html
Fixed in IcedTea6 versions 1.11.10 and 1.12.5, and IcedTea7 version 2.3.9: http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2013-April/022796.html http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2013-April/022890.html http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2013-April/022985.html
This issue has been addressed in following products: Supplementary for Red Hat Enterprise Linux 5 Supplementary for Red Hat Enterprise Linux 6 Via RHSA-2013:0823 https://rhn.redhat.com/errata/RHSA-2013-0823.html
This issue has been addressed in following products: Supplementary for Red Hat Enterprise Linux 5 Supplementary for Red Hat Enterprise Linux 6 Via RHSA-2013:0822 https://rhn.redhat.com/errata/RHSA-2013-0822.html
This issue has been addressed in following products: Red Hat Network Satellite Server v 5.5 Via RHSA-2013:1456 https://rhn.redhat.com/errata/RHSA-2013-1456.html
This issue has been addressed in following products: Red Hat Network Satellite Server v 5.4 Via RHSA-2013:1455 https://rhn.redhat.com/errata/RHSA-2013-1455.html