Multiple directory traversal vulnerabilities in OpenStack Nova before 2011.3.1, when the EC2 API and the S3/RegisterImage image-registration method are enabled, allow remote authenticated users to overwrite arbitrary files via a crafted (1) tarball or (2) manifest.
https://lists.launchpad.net/openstack/msg06105.html
https://github.com/openstack/nova/commit/ad3241929ea00569c74505ed002208ce360c667e
https://github.com/openstack/nova/commit/76363226bd8533256f7795bba358d7f4b8a6c9e6