Red Hat Security Advisory 2015-0660-01 – Red Hat Enterprise MRG is a next-generation IT infrastructure for enterprise computing. MRG offers increased performance, reliability, interoperability, and faster computing for enterprise customers. The Qpid packages provide a message broker daemon that receives, stores and routes messages using the open AMQP messaging protocol along with run-time libraries for AMQP client applications developed using Qpid C++. Clients exchange messages with an AMQP message broker using the AMQP protocol. It was discovered that the Qpid daemon did not restrict access to anonymous users when the ANONYMOUS mechanism was disallowed.