GHSA-vq76-rxx3-4r4r
OpenStack Nova DoS by rebuilding the same instance with a new image multiple times
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
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.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2017-17051
- https://github.com/openstack/nova/commit/25a1d78e83065c5bea5d8e0a017fd9d0914d41d9
- https://github.com/openstack/nova/commit/fed660c1189fdf4159d97badfdc8c5b35ad14f23
- https://github.com/openstack/nova
- https://launchpad.net/bugs/1732976
- https://review.openstack.org/521662
- https://review.openstack.org/523214
- https://security.openstack.org/ossa/OSSA-2017-006.html
- http://www.securityfocus.com/bid/102102