CVE-2017-17051
mediumpriority · track · 35EPSS 0.020 · 81 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4–8.6
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- GHSA-vq76-rxx3-4r4rOpenStack Nova DoS by rebuilding the same instance with a new image multiple times2022-05-13ghsa · osvUS
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.
- PYSEC-2026-692OpenStack Nova DoS by rebuilding the same instance with a new image multiple times2026-07-02vendor · osvUS
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.
also known as (6)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (19)
External citations — patches, advisories, analysis.
- https://launchpad.net/bugs/1732976cnnvd
- https://review.openstack.org/521662cnnvd
- https://review.openstack.org/523214cnnvd
- https://security.openstack.org/ossa/OSSA-2017-006.htmlcnnvd
- https://www.auscert.org.au/bulletins/ESB-2019.3244/cnnvd
- https://www.auscert.org.au/bulletins/ESB-2019.3330/cnnvd
- https://www.securityfocus.com/bid/102102cnnvd
- https://www.suse.com/support/update/announcement/2019/suse-su-20192219-1.htmlcnnvd
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