CVE & CISA-KEV Catalog

CVE-2017-18191

HIGHEPSS 89th pctl
7.5
CVSS v3
NVD

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.

How to fix

Remediation Available
novaDebian
Fixed in:2:17.0.0-1CVE-2017-18191
Fixed in:2:17.0.0-1CVE-2017-18191
Fixed in:2:17.0.0-1CVE-2017-18191
Fixed in:2:17.0.0-1CVE-2017-18191
novaUbuntu
Fixed in:2:13.1.4-0ubuntu4.5+esm1USN-5866-1
Fixed in:2:17.0.13-0ubuntu5.3USN-5866-1
Fixed in:2:21.2.4-0ubuntu2.2USN-5866-1
nova-commonUbuntu
Fixed in:2:13.1.4-0ubuntu4.5+esm1USN-5866-1
Fixed in:2:17.0.13-0ubuntu5.3USN-5866-1
Fixed in:2:21.2.4-0ubuntu2.2USN-5866-1
python-novaUbuntu
Fixed in:2:13.1.4-0ubuntu4.5+esm1USN-5866-1
Fixed in:2:17.0.13-0ubuntu5.3USN-5866-1
python3-novaUbuntu
Fixed in:2:21.2.4-0ubuntu2.2USN-5866-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

3.75%probability of exploitation in 30 days
89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.