CVE-2018-14635

Description

When using the Linux bridge ml2 driver, non-privileged tenants are able to create and attach ports without specifying an IP address, bypassing IP address validation. A potential denial of service could occur if an IP address, conflicting with existing guests or routers, is then assigned from outside of the allowed allocation pool. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3 and 11.0.5 are vulnerable.

Category

6.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.23% Top 25%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory openstack.org
Affected: The Openstack Project openstack-neutron
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2018:2710 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2018:2715 third party advisory vendor advisory
https://bugs.launchpad.net/neutron/+bug/1757482 third party advisory
https://access.redhat.com/errata/RHSA-2018:2721 third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14635 issue tracking third party advisory patch
https://access.redhat.com/errata/RHSA-2018:3792 third party advisory vendor advisory
https://git.openstack.org/cgit/openstack/neutron/commit/?id=54aa6e81cb17b33ce4d5d469cc11dec2869c762d patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-14635?
CVE-2018-14635 has been scored as a medium severity vulnerability.
How to fix CVE-2018-14635?
To fix CVE-2018-14635, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-14635 being actively exploited in the wild?
It is possible that CVE-2018-14635 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-14635?
CVE-2018-14635 affects The Openstack Project openstack-neutron.
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