CVE-2017-17051

Current Description

An issue was discovered in the default FilterScheduler in OpenStack Nova 16.0.3. By repeatedly rebuilding an instance with new images, an authenticated user may consume untracked resources on a hypervisor host leading to a denial of service, aka doubled resource allocations. This regression was introduced with the fix for OSSA-2017-005 (CVE-2017-16239); however, only Nova stable/pike or later deployments with that fix applied and relying on the default FilterScheduler are affected.

Basic Data

Published	December 05, 2017
Last Modified	October 03, 2019
Assigner	cve@mitre.org
Data Type	CVE
Data Format	MITRE
Data Version	4.0
Problem Type	CWE-400
CVE Data Version	4.0

Base Metric V2

CVSS 2 - Version	2.0
CVSS 2 - Vector String	AV:N/AC:L/Au:S/C:N/I:N/A:P
CVSS 2 - Access Vector	NETWORK
CVSS 2 - Access Complexity	LOW
CVSS 2 - Authentication	SINGLE
CVSS 2 - Confidentiality Impact	NONE
CVSS 2 - Availability Impact	PARTIAL
CVSS 2 - Base Score	4.0
Severity	MEDIUM
Exploitability Score	8.0
Impact Score	2.9
Obtain All Privilege	false
Obtain User Privilege	false
Obtain Other Privilege	false

Base Metric V3

CVSS 3 - Version	3.0
CVSS 3 - Vector String	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 3 - Attack Vector	NETWORK
CVSS 3 - Attack Complexity	LOW
CVSS 3 - Privileges Required	NONE
CVSS 3 - User Interaction	NONE
CVSS 3 - Scope	CHANGED
CVSS 3 - Confidentiality Impact	NONE
CVSS 3 - Integrity Impact	NONE
CVSS 3 - Availability Impact	HIGH
CVSS 3 - Base Score	8.6
CVSS 3 - Base Severity	HIGH
Exploitability Score	3.9
Base Severity	HIGH

Configurations

Vulnerable Software List

Vendor	Product	Versions
Openstack	Nova	16.0.3

References