Vulnerability in OpenStack Nova
CVE-2017-18191
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.037 (89.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.035 · newest: 0.037 · change: +0.002
Affected products
- OpenStack Nova
- Red Hat OpenStack — versions 9, 10, 12
References
- www.securityfocus.com/bid/103104 (VDB Entry, Third Party Advisory, vdb-entry)
- access.redhat.com/errata/RHSA-2018:2714 (vendor-advisory, Third Party Advisory)
- review.openstack.org/539893 (Exploit, Patch, Third Party Advisory)
- openwall.com/lists/oss-security/2018/04/20/3 (Patch, Mailing List, Third Party Advisory)
- security.openstack.org/ossa/OSSA-2018-001.html (Patch, Vendor Advisory)
- access.redhat.com/errata/RHSA-2018:2332 (vendor-advisory, Third Party Advisory)
- launchpad.net/bugs/1739593 (Exploit, Third Party Advisory, Issue Tracking)
- access.redhat.com/errata/RHSA-2018:2855 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-18191?
- CVE-2017-18191 is a high-severity vulnerability in OpenStack Nova. CVSS score: 7.5/10. Published 2018-02-19.
- How severe is CVE-2017-18191?
- High severity. CVSS v3 base score is 7.5 out of 10.