It was found that when Artemis and HornetQ before 2.4.0 are configured with UDP discovery and JGroups discovery a huge byte array is created when receiving an unexpected multicast message. This may result in a heap memory exhaustion, full GC, or OutOfMemoryError.
access.redhat.com/errata/RHSA-2018:0268
access.redhat.com/errata/RHSA-2018:0269
access.redhat.com/errata/RHSA-2018:0270
access.redhat.com/errata/RHSA-2018:0271
access.redhat.com/errata/RHSA-2018:0275
access.redhat.com/errata/RHSA-2018:0478
access.redhat.com/errata/RHSA-2018:0479
access.redhat.com/errata/RHSA-2018:0480
access.redhat.com/errata/RHSA-2018:0481
bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12174
lists.apache.org/thread.html/rb2fd3bf2dce042e0ab3f3c94c4767c96bb2e7e6737624d63162df36d%40%3Ccommits.activemq.apache.org%3E
lists.apache.org/thread.html/rc96ad63f148f784c84ea7f0a178c84a8985c6afccabbcd9847a82088%40%3Ccommits.activemq.apache.org%3E