Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

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 Severity Score

7.5

Score breakdown

Status

Package Release Status
nova
Launchpad, Ubuntu, Debian
artful
Released (2:16.1.2-0ubuntu1)
bionic Not vulnerable
(2:17.0.3-0ubuntu1)
cosmic Not vulnerable
(2:18.0.0~b1-0ubuntu1)
disco Not vulnerable
(2:18.0.0~b1-0ubuntu1)
eoan Not vulnerable
(2:18.0.0~b1-0ubuntu1)
focal Not vulnerable
(2:18.0.0~b1-0ubuntu1)
trusty Does not exist
(trusty was needed)
upstream
Released (15.1.1,16.1.2)
groovy Not vulnerable
(2:18.0.0~b1-0ubuntu1)
hirsute Not vulnerable
(2:18.0.0~b1-0ubuntu1)
xenial
Released (2:13.1.4-0ubuntu4.5+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
impish Not vulnerable
(2:18.0.0~b1-0ubuntu1)
jammy Not vulnerable
(2:18.0.0~b1-0ubuntu1)
kinetic Not vulnerable
(2:18.0.0~b1-0ubuntu1)
Patches:
upstream: https://review.openstack.org/#/c/543569/ (pike)
upstream: https://review.openstack.org/460243 (queens)
upstream: https://review.openstack.org/561604 (ocata)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H