8.6

CVE-2017-17051: openstack nova Uncontrolled Resource Consumption

Modified
AliasesGHSA-vq76-rxx3-4r4rPYSEC-2026-692UBUNTU-CVE-2017-17051
Published 05-12-2017Last modified 05-08-2024

Vulnerability summary

CVE-2017-17051 is a high (CVSS 8.6) Uncontrolled Resource Consumption vulnerability in openstack nova. EPSS estimates a 1.99% chance of exploitation in the next 30 days, higher than 80.6% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 8.6 (NVD); no exploitation reported by the 5 checked sources; EPSS 2% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
8.6/10
010
High · v3.0 (NVD)
EPSS score
1.99%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
SUSE-SU-2019:2219-1SUSE-SU-2019:2267-1

Timeline

  1. 05-12-2017
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

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 metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

1.99%

Chance of exploitation in the next 30 days

Percentile

81%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.99% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Debian1 product
  • nova< 2:16.0.3-6
Openstack1 product
PyPI1 product
  • nova< 16.0.4
Ubuntu1 product
  • nova< 2:17.0.0~rc2-0ubuntu1

4 vendors · 4 products

References

15 links
Show all 15 references