CVE-2017-16239 Information

Description

In OpenStack Nova through 14.0.9 15.x through 15.0.7 and 16.x through 16.0.2 by rebuilding an instance an authenticated user may be able to circumvent the Filter Scheduler bypassing imposed filters (for example the ImagePropertiesFilter or the IsolatedHostsFilter). All setups using Nova Filter Scheduler are affected. Because of the regression described in Launchpad Bug 1732947 the preferred fix is a 14.x version after 14.0.10 a 15.x version after 15.0.8 or a 16.x version after 16.0.3.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/101950 https://access.redhat.com/errata/RHSA-2018:0241 https://access.redhat.com/errata/RHSA-2018:0314 https://access.redhat.com/errata/RHSA-2018:0369 https://launchpad.net/bugs/1664931 https://security.openstack.org/ossa/OSSA-2017-005.html https://www.debian.org/security/2017/dsa-4056

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

6.5