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CVE-2017-17051

28
FAUCET Score

CVE-2017-17051 is a denial-of-service vulnerability affecting OpenStack Nova 16.0.3, specifically deployments using the default FilterScheduler with a fix for OSSA-2017-005 applied. An authenticated user can repeatedly rebuild an instance with new images, causing untracked resource consumption on a hypervisor. This vulnerability has a CVSS score of 8.6 (HIGH), indicating a network-based attack with low complexity and high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
16.0.3CPE matchmatch criteria
cpe:2.3:a:openstack:nova:16.0.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.97%
Probability of exploitation in next 30 days
EPSS Percentile
78.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0197 is in the 62nd percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

pippatch availablevia ghsa
Product: novaFixed in: 16.0.4

Vendor Advisories (2)

pipGHSA-vq76-rxx3-4r4rhigh

OpenStack Nova DoS by rebuilding the same instance with a new image multiple times

May 13, 2022
redhatCVE-2017-17051Moderate

openstack-nova: Nova FilterScheduler doubles resource allocations during rebuild with new image

Dec 5, 2017

References

launchpad.net / bugs/1732976
Issue TrackingThird Party Advisory
review.openstack.org / 521662
Vendor Advisory
review.openstack.org / 523214
Vendor Advisory
security.openstack.org / ossa/OSSA-2017-006.html
Vendor Advisory
securityfocus.com / bid/102102
Third Party AdvisoryVDB Entry