CVE-2018-14636 Openstack Neutron vulnerable to eavesdropping on private traffic
Attackers can inspect traffic from other instances on the same hypervisor during live migration if port states are manipulated, exposing sensitive network data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-14636?
CVE-2018-14636 is a medium-severity vulnerability in The Openstack Project openstack-neutron, published on 10 Sep 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-300
Which versions are affected by CVE-2018-14636?
7 open source packages ship an affected version, including neutron. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
neutron PyPI | From 11.0.0 | 11.0.5 |
neutron PyPI | From 11.0.0 | 11.0.5 |
neutron PyPI | From 12.0.0 | 12.0.3 |
neutron PyPI | From 12.0.0 | 12.0.3 |
neutron PyPI | From 13.0.0.0b1 | 13.0.0.0b2 |
neutron PyPI | From 13.0.0.0b1 | 13.0.0.0b2 |
1 more packages
neutron PyPI | From 7.0.0 | 11.0.5, 12.0.3 |
Products include Openstack Neutron.
How do I fix CVE-2018-14636?
Upgrade neutron to a fixed version for your release line: 11.0.5, 12.0.3 or 13.0.0.0b2.
Is CVE-2018-14636 being exploited?
There is no known exploitation of CVE-2018-14636 in the wild and no public exploit code.
Other vulnerabilities in The Openstack Project openstack-neutron
- CVE-2021-38598 OpenStack Neutron vulnerable to hardware address impersonation
- CVE-2015-8914 OpenStack Neutron allows remote attackers to bypass an intended ICMPv6-spoofing protection mechanism
- CVE-2016-5362 OpenStack Neutron allows remote attackers to bypass an intended DHCP-spoofing protection mechanism
- CVE-2016-5363 OpenStack Neutron Intended MAC-spoofing protection mechanism bypass
- CVE-2014-3632 Privilege escalation in n/a
Sources
Also known as DEBIAN-CVE-2018-14636, GHSA-8q95-jj7p-x93x, PYSEC-2018-94, UBUNTU-CVE-2018-14636.