Red Hat Security Advisory 2015-2512-01 – Red Hat Ceph Storage is a massively scalable, open, software-defined storage platform that combines the most stable version of the Ceph storage system with a Ceph management platform, deployment tools, and support services. A feature in Ceph Object Gateway allows to return a specific HTTP header that contains the name of a bucket that was accessed. It was found that the returned HTTP headers were not sanitized. An unauthenticated attacker could use this flaw to craft HTTP headers in responses that would confuse the load balancer residing in front of RGW, potentially resulting in a denial of service.