Ubuntu Security Notice 2193-1 - Paul McMillan discovered that the Sheepdog backend in OpenStack Glance did not properly handle untrusted input. A remote authenticated attacker exploit this to execute arbitrary commands as the glance user.
ff9740f205e6ae1e20a5d556a38042223b927531b3ab3ebba7441ac9ff0dd2c7Red Hat Security Advisory 2014-0455-01 - OpenStack Image service provides discovery, registration, and delivery services for disk and server images. It provides the ability to copy or snapshot a server image, and immediately store it away. Stored images can be used as a template to get new servers up and running quickly and more consistently than installing a server operating system and individually configuring additional services. It was found that Sheepdog, a distributed object storage system, did not properly validate Sheepdog image URIs. A remote attacker able to insert or modify glance image metadata could use this flaw to execute arbitrary commands with the privileges of the user running the glance service. Note that only OpenStack Image setups using the Sheepdog back end were affected.
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