Medium severity · published Sep 10, 2018
CVE-2018-14636
Live-migrated instances are briefly able to inspect traffic for other instances on the same hypervisor
5.3
CVSS
1.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 67% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NE
Neutron · Openstack
7.0.0 through 11.0.4; 12.0.0 through 12.0.2; 13.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-14636
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-14636
Issue Tracking
https://bugs.launchpad.net/neutron/+bug/1734320
Issue Tracking
https://bugs.launchpad.net/neutron/+bug/1767422
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14636
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