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CVE-2017-17051· NVD / CVE Program· CNA mitre

An issue was discovered in the default FilterScheduler in OpenStack Nova 16.0.3.

Noroxi assessment

Priority: Monitor (action score 35/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1.9% (FIRST EPSS); higher than 80.2% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: nova (Debian:12) 2:16.0.3-6; nova (PyPI) 16.0.4; ardana-ansible (SUSE:HPE Helion OpenStack 8) 8.0+git.1560208949.67048e3-3.64.1.

Low priority for now. Upgrade to nova (Debian:12) 2:16.0.3-6; nova (PyPI) 16.0.4; ardana-ansible (SUSE:HPE Helion OpenStack 8) 8.0+git.1560208949.67048e3-3.64.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

HighCVSS 8.6 · v3.0—No exploit Fix available
Published
Dec 5, 2017
Updated
Jun 16, 2026
EPSS
1.9% · 80th percentile

Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
34 / 40 · 8.6 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 1.9%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2017-17051

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
openstacknova

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • openstack nova16.0.3

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12novabefore 2:16.0.3-62:16.0.3-6
PyPInovabefore 16.0.416.0.4
SUSE:HPE Helion OpenStack 8ardana-ansiblebefore 8.0+git.1560208949.67048e3-3.64.18.0+git.1560208949.67048e3-3.64.1
SUSE:HPE Helion OpenStack 8ardana-dbbefore 8.0+git.1564410318.f0cca2c-3.28.18.0+git.1564410318.f0cca2c-3.28.1
SUSE:HPE Helion OpenStack 8ardana-freezerbefore 8.0+git.1564164977.ef9baeb-3.18.18.0+git.1564164977.ef9baeb-3.18.1
SUSE:HPE Helion OpenStack 8ardana-glancebefore 8.0+git.1564491709.349d78e-3.14.18.0+git.1564491709.349d78e-3.14.1
SUSE:HPE Helion OpenStack 8ardana-input-modelbefore 8.0+git.1562848601.c3daff0-3.30.18.0+git.1562848601.c3daff0-3.30.1
SUSE:HPE Helion OpenStack 8ardana-novabefore 8.0+git.1565388406.c6abb8d-3.32.18.0+git.1565388406.c6abb8d-3.32.1
SUSE:HPE Helion OpenStack 8ardana-osconfigbefore 8.0+git.1563383198.c7fd9b4-3.39.18.0+git.1563383198.c7fd9b4-3.39.1
SUSE:HPE Helion OpenStack 8ardana-tempestbefore 8.0+git.1562849010.73bc517-3.24.18.0+git.1562849010.73bc517-3.24.1
SUSE:HPE Helion OpenStack 8caasp-openstack-heat-templatesbefore 1.0+git.1560518045.ad7dc6d-4.15.11.0+git.1560518045.ad7dc6d-4.15.1
SUSE:HPE Helion OpenStack 8documentation-hpe-helion-openstack-installationbefore 8.20190805-1.20.18.20190805-1.20.1
SUSE:HPE Helion OpenStack 8documentation-hpe-helion-openstack-operationsbefore 8.20190805-1.20.18.20190805-1.20.1
SUSE:HPE Helion OpenStack 8documentation-hpe-helion-openstack-opsconsolebefore 8.20190805-1.20.18.20190805-1.20.1
SUSE:HPE Helion OpenStack 8documentation-hpe-helion-openstack-planningbefore 8.20190805-1.20.18.20190805-1.20.1
SUSE:HPE Helion OpenStack 8documentation-hpe-helion-openstack-securitybefore 8.20190805-1.20.18.20190805-1.20.1
SUSE:HPE Helion OpenStack 8documentation-hpe-helion-openstack-userbefore 8.20190805-1.20.18.20190805-1.20.1
SUSE:HPE Helion OpenStack 8galera-python-clustercheckbefore 0.0+git.1562242499.36b8b64-4.6.10.0+git.1562242499.36b8b64-4.6.1
SUSE:HPE Helion OpenStack 8openstack-cinderbefore 11.2.3~dev7-3.18.211.2.3~dev7-3.18.2
SUSE:HPE Helion OpenStack 8openstack-cinder-docbefore 11.2.3~dev7-3.18.111.2.3~dev7-3.18.1
SUSE:HPE Helion OpenStack 8openstack-glancebefore 15.0.3~dev2-3.9.215.0.3~dev2-3.9.2
SUSE:HPE Helion OpenStack 8openstack-glance-docbefore 15.0.3~dev2-3.9.115.0.3~dev2-3.9.1
SUSE:HPE Helion OpenStack 8openstack-heatbefore 9.0.8~dev11-3.21.29.0.8~dev11-3.21.2
SUSE:HPE Helion OpenStack 8openstack-heat-docbefore 9.0.8~dev11-3.21.19.0.8~dev11-3.21.1

+96

Same product

openstack: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-7214An issue was discovered in exception_wrapper.py in OpenStack Nova 13.x through 13.1.3, 14.x through 14.0.4, and 15.x through 15.0.1.
    40Plan
  • CVE-2026-46448In OpenStack Nova before 33.0.2, the server create API does not strip certain hint data.
    34Monitor
  • CVE-2020-17376An issue was discovered in Guest.migrate in virt/libvirt/guest.py in OpenStack Nova before 19.3.1, 20.x before 20.3.1, and 21.0.0.
    34Monitor
  • CVE-2011-3147qcow format could expose host filesystem information
    34Monitor
  • CVE-2026-24708An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1.
    32Monitor
  • CVE-2021-3654A vulnerability was found in openstack-nova's console proxy, noVNC.
    32Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:nova2:16.0.3-6 · Debian:12Package registry (OSV)
PyPI:nova16.0.4Package registry (OSV)
suse:ardana-ansible8.0+git.1560208949.67048e3-3.64.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:ardana-db8.0+git.1564410318.f0cca2c-3.28.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:ardana-freezer8.0+git.1564164977.ef9baeb-3.18.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:ardana-glance8.0+git.1564491709.349d78e-3.14.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:ardana-input-model8.0+git.1562848601.c3daff0-3.30.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:ardana-nova8.0+git.1565388406.c6abb8d-3.32.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:ardana-osconfig8.0+git.1563383198.c7fd9b4-3.39.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:ardana-tempest8.0+git.1562849010.73bc517-3.24.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:caasp-openstack-heat-templates1.0+git.1560518045.ad7dc6d-4.15.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:documentation-hpe-helion-openstack-installation8.20190805-1.20.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:documentation-hpe-helion-openstack-operations8.20190805-1.20.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:documentation-hpe-helion-openstack-opsconsole8.20190805-1.20.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-400 · Uncontrolled Resource Consumption

CVSS vector

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

nvd-primary

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

The bug in code

The whole CWE-400 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
function expand(node) {  return node.children.map(expand);}

Fixed

ts
const MAX_DEPTH = 32;function expand(node, depth = 0) {  if (depth > MAX_DEPTH) throw new Error("too deep");  return node.children.map((c) => expand(c, depth + 1));}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (4 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records