CVE-2021-40797
Published: 8 September 2021
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.
Notes
| Author | Note |
|---|---|
| mdeslaur | This issue was fixed in (2:16.4.1-0ubuntu2) in focal-updates and (2:18.1.1-0ubuntu2) in hirsute-updates, and was later released to -security. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
neutron Launchpad, Ubuntu, Debian |
bionic |
Released
(2:12.1.1-0ubuntu8.1)
|
| focal |
Released
(2:16.4.2-0ubuntu6.2)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Not vulnerable
(2:18.1.1+git2021091315.0fa97ecceb-0ubuntu1)
|
|
| jammy |
Not vulnerable
(2:18.1.1+git2021091315.0fa97ecceb-0ubuntu1)
|
|
| kinetic |
Not vulnerable
(2:18.1.1+git2021091315.0fa97ecceb-0ubuntu1)
|
|
| lunar |
Not vulnerable
(2:18.1.1+git2021091315.0fa97ecceb-0ubuntu1)
|
|
| mantic |
Not vulnerable
(2:18.1.1+git2021091315.0fa97ecceb-0ubuntu1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(16.4.1, 17.2.1, 18.1.1)
|
|
| xenial |
Needs triage
|
|
|
Patches: upstream: https://opendev.org/openstack/neutron/commit/dfbb9bcb5dae282c575b33171d691a5fca946beb |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |