{"cve":"CVE-2017-18191","nvd":{"published":"2018-02-19T17:29:00.203","modified":"2026-06-17T01:12:21.737","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":[],"references":["http://openwall.com/lists/oss-security/2018/04/20/3","http://www.securityfocus.com/bid/103104","https://access.redhat.com/errata/RHSA-2018:2332","https://access.redhat.com/errata/RHSA-2018:2714","https://access.redhat.com/errata/RHSA-2018:2855"],"products":["openstack:nova","redhat:openstack"],"source":"nvd","synced_at":"2026-10-19T20:48:34.567387330+00:00"},"epss":{"cve":"CVE-2017-18191","score":0.03715,"percentile":0.89771,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-ffmh-r67w-m88f","url":"https://osv.dev/vulnerability/GHSA-ffmh-r67w-m88f","summary":"OpenStack Nova Denial of service attack on the compute host","modified":"2026-07-06T08:11:37.985877181Z","packages":[{"ecosystem":"PyPI","name":"nova","purl":"pkg:pypi/nova","ranges":[">=15.0.0 <15.1.1"],"fixed":["15.1.1"]},{"ecosystem":"PyPI","name":"nova","purl":"pkg:pypi/nova","ranges":[">=16.0.0 <16.1.2"],"fixed":["16.1.2"]}]},{"id":"PYSEC-2026-689","url":"https://osv.dev/vulnerability/PYSEC-2026-689","summary":"OpenStack Nova Denial of service attack on the compute host","modified":"2026-07-06T08:00:47.574623169Z","packages":[{"ecosystem":"PyPI","name":"nova","purl":"pkg:pypi/nova","ranges":[">=15.0.0 <15.1.1",">=16.0.0 <16.1.2"],"fixed":["15.1.1","16.1.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}