CVE-2017-18191

Published: 19 February 2018

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.

Priority

Low

CVSS 3 base score: 7.5

Status

Package Release Status
nova
Launchpad, Ubuntu, Debian
Upstream
Released (15.1.1,16.1.2)
Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(2:18.0.0~b1-0ubuntu1)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(2:18.0.0~b1-0ubuntu1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(2:17.0.3-0ubuntu1)
Ubuntu 16.04 LTS (Xenial Xerus) Needed

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was needed)
Patches:
Upstream: https://review.openstack.org/#/c/543569/ (pike)