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6.5
CVE-2023-3637: OpenStack Neutron: Invalid Project Security Group Queries
CVE-2023-3637 · published 3 years ago
Summary
A flaw in OpenStack Neutron allows an authenticated user to exhaust system resources by repeatedly querying invalid project security groups. This could lead to a denial of service. To protect against this, ensure that OpenStack Neutron's quota settings are properly configured.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| pip | openstack | neutron | <= 22.0.2 |
| – | redhat | openstack_platform |
13.0 16.2 cpe:2.3:a:redhat:openstack_platform:13.0:*:*:*:*:*:*:* |
| Ubuntu:16.04:LTS | canonical | neutron | All versions |
| Ubuntu:18.04:LTS | canonical | neutron | All versions |
| Ubuntu:20.04:LTS | canonical | neutron | All versions |
| Ubuntu:22.04:LTS | canonical | neutron | All versions |
| Ubuntu:24.04:LTS | canonical | neutron | All versions |
| Ubuntu:25.10 | canonical | neutron | All versions |
Original advisory text
An uncontrolled resource consumption flaw was found in openstack-neutron. This flaw allows a remote authenticated user to query a list of security groups for an invalid project. This issue creates ...
An uncontrolled resource consumption flaw was found in openstack-neutron. This flaw allows a remote authenticated user to query a list of security groups for an invalid project. This issue creates resources that are unconstrained by the user's quota. If a malicious user were to submit a significant number of requests, this could lead to a denial of service.
References
- https://nvd.nist.gov/vuln/detail/CVE-2023-3637
- https://bugzilla.redhat.com/show_bug.cgi?id=2222270
- https://github.com/advisories/GHSA-r3jh-qhgj-gvr8
- https://access.redhat.com/security/cve/CVE-2023-3637 Third Party Advisory
- https://ubuntu.com/security/CVE-2023-3637 Third Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2023-3637 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2023:4283 Third Party Advisory
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker partial control
Type
CWE-400Uncontrolled Resource Consumption
Timeline
Published25 Jul 2023
Updated4 Nov 2026
First seen6 Mar 2026
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