openstack-nova: Swapping encrypted volumes can allow an attacker to corrupt the LUKS header causing a denial of service in the host
Published Feb 19, 2018
7.5
HIGHCVSS 3.0
EPSS 3.72%
Description
An issue was discovered in OpenStack Nova 15.x through 15.1.0 and 16.x through 16.1.1. By detaching and reattaching an encrypted volume, an attacker may access the underlying raw volume and corrupt the LUKS header, resulting in a denial of service attack on the compute host. (The same code error also results in data loss, but that is not a vulnerability because the user loses their own data.) All Nova setups supporting encrypted volumes are affected.
Affected products
No data.
No data.
Red Hat OpenStack Platform 10.0 (Newton)
openstack-nova-1:14.1.0-26.el7ost
Fixed · RHSA-2018:2714
Red Hat OpenStack Platform 12.0 (Pike)
openstack-nova-1:16.1.4-6.el7ost
Fixed · RHSA-2018:2332
Red Hat OpenStack Platform 9.0 (Mitaka)
openstack-nova-1:13.1.4-24.el7ost
Fixed · RHSA-2018:2855
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
openstack-nova
Will not fix
Red Hat OpenStack Platform 11 (Ocata)
openstack-nova
Will not fix
Red Hat OpenStack Platform 13 (Queens)
openstack-nova
Not affected
Red Hat OpenStack Platform 8 (Liberty)
openstack-nova
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat OpenStack Platform 10.0 (Newton) | openstack-nova-1:14.1.0-26.el7ost | Fixed | RHSA-2018:2714 |
| Red Hat OpenStack Platform 12.0 (Pike) | openstack-nova-1:16.1.4-6.el7ost | Fixed | RHSA-2018:2332 |
| Red Hat OpenStack Platform 9.0 (Mitaka) | openstack-nova-1:13.1.4-24.el7ost | Fixed | RHSA-2018:2855 |
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | openstack-nova | Will not fix | n/a |
| Red Hat OpenStack Platform 11 (Ocata) | openstack-nova | Will not fix | n/a |
| Red Hat OpenStack Platform 13 (Queens) | openstack-nova | Not affected | n/a |
| Red Hat OpenStack Platform 8 (Liberty) | openstack-nova | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
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:N/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:C
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 v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.72% (0.03715) | 89.42th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.89% (0.03893) | 88.86th | v5 (v2026.06.15) |
| Feb 15, 2026 | 2.50% (0.02495) | 85.00th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.26% (0.01257) | 77.53th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.56% (0.03561) | 79.28th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.26% (0.01257) | 78.01th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.31% (0.00307) | 70.67th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.30% (0.00297) | 68.55th | v3 (v2023.03.01) |
| Jul 13, 2023 | 0.30% (0.00297) | 65.20th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.42% (0.00422) | 70.22th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.18% (0.01183) | 61.76th | v2 (v2022.01.01) |
| Oct 19, 2022 | 1.18% (0.01183) | 60.79th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.18% (0.01183) | 58.77th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.18% (0.01183) | 35.15th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.31% (0.02314) | 53.75th | v1 |
| Jan 6, 2022 | 2.31% (0.02314) | 53.29th | v1 |
| Sep 1, 2021 | 2.31% (0.02314) | 78.25th | v1 |
| Apr 14, 2021 | 2.31% (0.02314) | 0.00th | v1 |
References (16)
- http://openwall.com/lists/oss-security/2018/04/20/3 x_refsource_MISCMailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/103104 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:2332 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2714 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2855 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-18191 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1546937 Issue Tracking
- https://github.com/advisories/GHSA-ffmh-r67w-m88f Advisory
- https://github.com/openstack/nova/commit/0225a61fc4557c1257383a654f0741f7ef2ddeac
- https://github.com/openstack/nova/commit/5b64a1936122eeb35f37a09f9d38159e1a224c58
- https://github.com/openstack/nova/commit/cd3eb60c2c00bcccfa9ccd4bf9d1a96ae7a5cd88
- https://launchpad.net/bugs/1739593 x_refsource_CONFIRMExploitIssue TrackingThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-18191
- https://review.openstack.org/539893 x_refsource_CONFIRMExploitPatchThird Party Advisory
- https://security.openstack.org/ossa/OSSA-2018-001.html x_refsource_CONFIRMPatchVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-18191
Change history (0)
No recorded changes yet.