CVE-2015-0203

El broker qpidd Apache Qpid 0.30 y anteriores permite que usuarios autenticados remotos provoquen una denegación de servicio (cierre inesperado del demonio) mediante un mensaje AMQP con (1) un rango inválido en un conjunto de secuencias, (2) métodos content-bearing distintos de message-transfer o (3) un control session-gap antes del session-attach correspondiente.

A flaw was found in the way the Qpid daemon (qpidd) processed certain protocol sequences. An unauthenticated attacker able to send a specially crafted protocol sequence set could use this flaw to crash qpidd.

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.