CVE-2018-14636
September 10, 2018
Live-migrated instances are briefly able to inspect traffic for other instances on the same hypervisor. This brief window could be extended indefinitely if the instance's port is set administratively down prior to live-migration and kept down after the migration is complete. This is possible due to the Open vSwitch integration bridge being connected to the instance during migration. When connected to the integration bridge, all traffic for instances using the same Open vSwitch instance would potentially be visible to the migrated guest, as the required Open vSwitch VLAN filters are only applied post-migration. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3, 11.0.5 are vulnerable.
Affected Packages
neutron (PYTHON):
Affected version(s) >=12.0.0 <12.0.3Fix Suggestion:
Update to version 12.0.3neutron (PYTHON):
Affected version(s) =13.0.0.0b1 <13.0.0.0b2Fix Suggestion:
Update to version 13.0.0.0b2neutron (PYTHON):
Affected version(s) >=11.0.3 <11.0.5Fix Suggestion:
Update to version 11.0.5Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
6
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
CVSS v2
Base Score:
3.5
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Weakness Type (CWE)
Channel Accessible by Non-Endpoint
EPSS
Base Score:
0.21
