CVEvulnerability
CVE-2021-40797
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-09-08
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 4.0 MEDIUM — AV:N/AC:L/Au:S/C:N/I:N/A:P
- Weaknesses
- CWE-772
Description
An issue was discovered in the routes middleware in OpenStack Neutron before 16.4.1, 17.x before 17.2.1, and 18.x before 18.1.1. By making API requests involving nonexistent controllers, an authenticated user may cause the API worker to consume increasing amounts of memory, resulting in API performance degradation or denial of service.
Affected configurations
• openstack neutron (< 16.4.1)
• openstack neutron (>= 17.0.0 < 17.2.1)
• openstack neutron (>= 18.0.0 < 18.1.1)
Related
Weakness · CWE (1)
- CWE-772 Missing Release of Resource after Effective Lifetime weakness
References
- http://www.openwall.com/lists/oss-security/2021/09/09/2 Mailing List, Patch, Third Party Advisory
- https://launchpad.net/bugs/1942179 Exploit, Issue Tracking, Third Party Advisory
- https://security.openstack.org/ossa/OSSA-2021-006.html Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2021/09/09/2 Mailing List, Patch, Third Party Advisory
- https://launchpad.net/bugs/1942179 Exploit, Issue Tracking, Third Party Advisory
- https://security.openstack.org/ossa/OSSA-2021-006.html Patch, Vendor Advisory