CVE-2018-14635
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account. High risk of service disruption.
- Exploit odds
- 2.5% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 2.5% in the next 30 days (EPSS).
- Severity: 6.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 2.5% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Modified
Affected
- Redhat Openstack 10
- Redhat Openstack 12
- Redhat Openstack 13
- Openstack Neutron ≤ 11.0.5
- Openstack Neutron ≤ 12.0.3
- Openstack Neutron 13.0.0.0
Attack profile CVSS 3.0 · 6.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2018-14635.md and follow it. Check whether this project is affected by CVE-2018-14635. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14635
- https://git.openstack.org/cgit/openstack/neutron/commit/?id=54aa6e81cb17b33ce4d5d469cc11dec2869c762d
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14635
- https://git.openstack.org/cgit/openstack/neutron/commit/?id=54aa6e81cb17b33ce4d5d469cc11dec2869c762d
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
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14635
- https://git.openstack.org/cgit/openstack/neutron/commit/?id=54aa6e81cb17b33ce4d5d469cc11dec2869c762d