openstack-nova: Nova Filter Scheduler bypass through rebuild action
Published Nov 14, 2017
6.5
MEDIUMCVSS 3.0
EPSS 1.42%
Description
In OpenStack Nova through 14.0.9, 15.x through 15.0.7, and 16.x through 16.0.2, by rebuilding an instance, an authenticated user may be able to circumvent the Filter Scheduler bypassing imposed filters (for example, the ImagePropertiesFilter or the IsolatedHostsFilter). All setups using Nova Filter Scheduler are affected. Because of the regression described in Launchpad Bug #1732947, the preferred fix is a 14.x version after 14.0.10, a 15.x version after 15.0.8, or a 16.x version after 16.0.3.
Affected products
No data.
- ≤ 14.0.9
- 15.0.0
- 15.0.1
- 15.0.2
- 15.0.3
- 15.0.4
- 15.0.5
- 15.0.6
- 15.0.7
- 16.0.0
- 16.0.1
- 16.0.2
No data.
Red Hat OpenStack Platform 10.0 (Newton)
openstack-nova-1:14.1.0-3.el7ost
Fixed · RHSA-2018:0369
Red Hat OpenStack Platform 10.0 (Newton)
python-novaclient-1:6.0.2-2.el7ost
Fixed · RHSA-2018:0369
Red Hat OpenStack Platform 11.0 (Ocata)
openstack-nova-1:15.0.8-5.el7ost
Fixed · RHSA-2018:0314
Red Hat OpenStack Platform 12.0 (Pike)
openstack-nova-1:16.0.2-9.el7ost
Fixed · RHSA-2018:0241
Red Hat Enterprise Linux OpenStack Platform 6 (Juno)
openstack-nova
Will not fix
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
openstack-nova
Will not fix
Red Hat OpenStack Platform 8 (Liberty)
openstack-nova
Will not fix
Red Hat OpenStack Platform 9 (Mitaka)
openstack-nova
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat OpenStack Platform 10.0 (Newton) | openstack-nova-1:14.1.0-3.el7ost | Fixed | RHSA-2018:0369 |
| Red Hat OpenStack Platform 10.0 (Newton) | python-novaclient-1:6.0.2-2.el7ost | Fixed | RHSA-2018:0369 |
| Red Hat OpenStack Platform 11.0 (Ocata) | openstack-nova-1:15.0.8-5.el7ost | Fixed | RHSA-2018:0314 |
| Red Hat OpenStack Platform 12.0 (Pike) | openstack-nova-1:16.0.2-9.el7ost | Fixed | RHSA-2018:0241 |
| Red Hat Enterprise Linux OpenStack Platform 6 (Juno) | openstack-nova | Will not fix | n/a |
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | openstack-nova | Will not fix | n/a |
| Red Hat OpenStack Platform 8 (Liberty) | openstack-nova | Will not fix | n/a |
| Red Hat OpenStack Platform 9 (Mitaka) | openstack-nova | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
The upstream fix requires RequestSpec, which was introduced in OSP10. Patching versions, prior to version 10, comes with a considerable risk of introducing new bugs. Based on the impact of this vulnerability it was determined that OSP6 to 9 would not be fixed.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
AV:N/AC:L/Au:S/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.42% (0.01421) | 71.88th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.41% (0.01410) | 69.05th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.40% (0.00395) | 58.29th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.13% (0.00133) | 50.05th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.13% (0.00133) | 47.64th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.16% (0.00159) | 50.68th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.66% (0.01659) | 34.20th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.66% (0.01659) | 0.00th | v1 |
References (16)
- http://www.securityfocus.com/bid/101950 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:0241 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2018:0314 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2018:0369 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2017-16239 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1508539 Issue Tracking
- https://github.com/advisories/GHSA-w2wf-cgwh-vpqg Advisory
- https://github.com/openstack/nova/commit/698b261a5a2a6c0f31ef5059046ef7196d5cba30
- https://github.com/openstack/nova/commit/984dd8ad6add4523d93c7ce5a666a32233e02e34
- https://github.com/openstack/nova/commit/9e2d63da94db63d97bd02e373bfc53d95808b833
- https://github.com/openstack/nova/commit/b72105c1c49fcddc94992af63fc2f8078023491a
- https://launchpad.net/bugs/1664931 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2017-16239
- https://security.openstack.org/ossa/OSSA-2017-005.html x_refsource_CONFIRMVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-16239
- https://www.debian.org/security/2017/dsa-4056 vendor-advisoryx_refsource_DEBIAN
Change history (0)
No recorded changes yet.