PT-2018-8404 · Openstack · Openstack Neutron
Published
2018-07-26
·
Updated
2023-02-12
·
CVE-2017-7543
CVSS v3.1
5.9
Medium
| Vector | AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
Name of the Vulnerable Software and Affected Versions
openstack-neutron versions prior to 7.2.0-12.1
openstack-neutron versions 8.x prior to 8.3.0-11.1
openstack-neutron versions 9.x prior to 9.3.1-2.1
openstack-neutron versions 10.x prior to 10.0.2-1.1
Description
A race-condition flaw was discovered where, following a minor overcloud update, neutron security groups were disabled. This resulted in the reset of
net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables to 0. The issue could be exploited by an attacker to access exposed tenant VMs and network resources after an update.Recommendations
For versions prior to 7.2.0-12.1, update to version 7.2.0-12.1 or later.
For versions 8.x prior to 8.3.0-11.1, update to version 8.3.0-11.1 or later.
For versions 9.x prior to 9.3.1-2.1, update to version 9.3.1-2.1 or later.
For versions 10.x prior to 10.0.2-1.1, update to version 10.0.2-1.1 or later.
Fix
Race Condition
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Weakness Enumeration
Related Identifiers
Affected Products
Openstack Neutron