Resource exhaustion in OpenStack Nova
CVE-2017-17051
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.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.020 (80.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.020 · change: +0.003
Affected products
- OpenStack Nova — versions 16.0.3
Weakness classification (CWE)
References
- review.openstack.org/521662 (Vendor Advisory)
- security.openstack.org/ossa/OSSA-2017-006.html (Vendor Advisory)
- review.openstack.org/523214 (Vendor Advisory)
- launchpad.net/bugs/1732976 (Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/102102 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-17051?
- CVE-2017-17051 is a high-severity vulnerability in OpenStack Nova, classified under Uncontrolled Resource Consumption. CVSS score: 8.6/10. Published 2017-12-05.
- How severe is CVE-2017-17051?
- High severity. CVSS v3 base score is 8.6 out of 10.