{"id":"UBUNTU-CVE-2017-17051","details":"An issue was discovered in the default FilterScheduler in OpenStack Nova 16.0.3. By repeatedly rebuilding an instance with new images, an authenticated user may consume untracked resources on a hypervisor host leading to a denial of service, aka doubled resource allocations. This regression was introduced with the fix for OSSA-2017-005 (CVE-2017-16239); however, only Nova stable/pike or later deployments with that fix applied and relying on the default FilterScheduler are affected.","modified":"2025-07-16T07:36:23.216149Z","published":"2017-12-05T00:00:00Z","withdrawn":"2025-07-18T16:44:16Z","upstream":["CVE-2017-17051"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-17051"},{"type":"REPORT","url":"https://security.openstack.org/ossa/OSSA-2017-006.html"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2017/12/05/5"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-17051"}],"affected":[{"package":{"name":"nova","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/nova@2:17.0.0~rc2-0ubuntu1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:17.0.0~rc2-0ubuntu1"}]}],"versions":["2:16.0.1-0ubuntu1","2:16.0.1-0ubuntu2","2:17.0.0~b1-0ubuntu1","2:17.0.0~b2-0ubuntu2","2:17.0.0~b3-0ubuntu3","2:17.0.0~b3-0ubuntu4","2:17.0.0~rc1-0ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-ajax-console-proxy"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-api"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-api-metadata"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-api-os-compute"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-api-os-volume"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-cells"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-common"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-compute"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-compute-kvm"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-compute-libvirt"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-compute-lxc"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-compute-qemu"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-compute-vmware"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-compute-xen"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-conductor"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-console"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-consoleauth"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-doc"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-network"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-novncproxy"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-placement-api"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-scheduler"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-serialproxy"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-spiceproxy"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-volume"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"nova-xvpvncproxy"},{"binary_version":"2:17.0.0~rc2-0ubuntu1","binary_name":"python-nova"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-17051.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}