{"schema_version":"1.7.5","id":"CVE-2017-17051","published":"2017-12-05T18:29:00.227Z","modified":"2026-07-08T11:49:20.793337Z","aliases":["GHSA-vq76-rxx3-4r4r","PYSEC-2026-692"],"related":["SUSE-SU-2019:2219-1","SUSE-SU-2019:2267-1"],"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.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openstack/nova","events":[{"introduced":"3f63d057a64b688b66ff1903c1afc4d97ba6df6d"},{"last_affected":"3f63d057a64b688b66ff1903c1afc4d97ba6df6d"}],"database_specific":{"cpe":"cpe:2.3:a:openstack:nova:16.0.3:*:*:*:*:*:*:*","extracted_events":[{"introduced":"16.0.3"},{"last_affected":"16.0.3"}],"source":"CPE_STRING"}}],"versions":["16.0.3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-17051.json"}}],"references":[{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/102102"},{"type":"ADVISORY","url":"https://review.openstack.org/521662"},{"type":"ADVISORY","url":"https://review.openstack.org/523214"},{"type":"ADVISORY","url":"https://security.openstack.org/ossa/OSSA-2017-006.html"},{"type":"REPORT","url":"https://launchpad.net/bugs/1732976"}],"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H"}]}