Home/CVE/When using the Linux bridge ml2 driver, non-privileged tenants are able to create and attach ports without specifying an
CVE

CVE-2018-14635

When using the Linux bridge ml2 driver, non-privileged tenants are able to create and attach ports without specifying an

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.

MEDIUM · CVSS 6.5 EPSS 0.00306
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
CWE-20Improper Input Validation
▤

Affected Products & Versions

4
redhat openstackall versions
openstack neutron>= 11.0.0 and <= 11.0.5
openstack neutron>= 12.0.0 and <= 12.0.3
openstack neutronall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
PyPI neutron HIGH fixed in 13.0.0.0b2
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.0 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Sep 2018 · 07:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

3
rhsaRHSA-2018:2715Moderate
rhsaRHSA-2018:2710Moderate
rhsaRHSA-2018:3792Moderate
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://access.redhat.com/errata/RHSA-2018:2721Third Party Advisory
https://bugs.launchpad.net/neutron/+bug/1757482Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14635Issue TrackingPatchThird Party Advisory
https://git.openstack.org/cgit/openstack/neutron/commit/?id=54aa6e81cb17b33ce4d5d469cc11dec2869c762dPatchVendor Advisory
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