What’s Vulnerable › Vulnerabilities

CVE-2018-14635

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-09-10 · updated 2026-06-17
• Weakness: CWE-20

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.

Affected products

• OpenStack Neutron: from 11.0.0 through 11.0.5; from 12.0.0 through 12.0.3; 13.0.0.0-b1
• OpenStack: 10, 12, 13

References

• https://access.redhat.com/errata/RHSA-2018:2710
• https://access.redhat.com/errata/RHSA-2018:2715
• https://access.redhat.com/errata/RHSA-2018:2721
• https://access.redhat.com/errata/RHSA-2018:3792
• https://bugs.launchpad.net/neutron/+bug/1757482
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14635
• https://git.openstack.org/cgit/openstack/neutron/commit/?id=54aa6e81cb17b33ce4d5d469cc11dec2869c762d
• https://access.redhat.com/errata/RHSA-2018:2710
• https://access.redhat.com/errata/RHSA-2018:2715
• https://access.redhat.com/errata/RHSA-2018:2721
• https://access.redhat.com/errata/RHSA-2018:3792
• https://bugs.launchpad.net/neutron/+bug/1757482

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