CVE-2017-17051

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Summary

CVECVE-2017-17051
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-12-05 18:29:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionAn 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.

Risk And Classification

Primary CVSS: v3.0 8.6 HIGH from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS: 0.008410000 probability, percentile 0.749040000 (date 2026-05-15)

Problem Types: CWE-400 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary8.6HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
2.0[email protected]Primary4AV:N/AC:L/Au:S/C:N/I:N/A:P

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:S/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openstack Nova 16.0.3 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Gerrit Code Review af854a3a-2127-422b-91ae-364da2661108 review.openstack.org Vendor Advisory
OSSA-2017-006: Nova FilterScheduler doubles resource allocations during rebuild with new image — openstack-security-advisories 2014.2.0.dev144 documentation af854a3a-2127-422b-91ae-364da2661108 security.openstack.org Vendor Advisory
Bug #1732976 “[OSSA-2017-006] Potential DoS by rebuilding the sa...” : Bugs : OpenStack Compute (nova) af854a3a-2127-422b-91ae-364da2661108 launchpad.net Issue Tracking, Third Party Advisory
OpenStack Nova CVE-2017-17051 Incomplete Fix Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
Gerrit Code Review af854a3a-2127-422b-91ae-364da2661108 review.openstack.org Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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