Red Hat Security Advisory 2016-1384-01 – Red Hat Ceph Storage is a massively scalable, open, software-defined storage platform that combines the most stable version of Ceph with a Ceph management platform, deployment tools, and support services. A flaw was found in the way handle_command() function would validate prefix value from user. An authenticated attacker could send a specially crafted prefix value resulting in ceph monitor crash. Upstream acknowledges Xiaoxi Chen as the original reporter of CVE-2016-5009.