---
title: "CVE-2022-2447\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2022-2447?format=md
keywords: index, follow
---

# CVE-2022-2447

Publication date 1 September 2022

Last updated 11 December 2025

---

Ubuntu priority

**Low**

[Why this priority?](https://ubuntu.com/security/CVE-2022-2447?format=md#priority-reason )

## Cvss 3 Severity Score

**6.6 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2022-2447?format=md#impact-score)

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## Description

A flaw was found in Keystone. There is a time lag (up to one hour in a
default configuration) between when security policy says a token should be
revoked from when it is actually revoked. This could allow a remote
administrator to secretly maintain access for longer than expected.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2022-2447?format=md#notes)

### Why is this CVE low priority?

Upstream keystone developers have rated this to be a low severity issue

[Learn more about Ubuntu priority](https://ubuntu.com/security/cves/about#priority)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| keystone | 26.04 LTS resolute | Not affected |
| 25.10 questing | Not affected |
| 25.04 plucky | Not affected |
| 24.10 oracular | Ignored end of life, was deferred [2023-01-03] |
| 24.04 LTS noble | Not affected |
| 23.10 mantic | Ignored end of life, was needed |
| 23.04 lunar | Ignored end of life, was needed |
| 22.10 kinetic | Ignored end of life, was needed |
| 22.04 LTS jammy | Fixed 2:21.0.1-0ubuntu2.1 |
| 20.04 LTS focal | Vulnerable |
| 18.04 LTS bionic | Vulnerable |
| 16.04 LTS xenial | Vulnerable |
| 14.04 LTS trusty | Ignored end of standard support |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2022-2447?format=md#patch-details)

## Notes

---

### [mdeslaur](https://launchpad.net/~mdeslaur)

fixed in 21.0.1, 22.0.1, 23.0.0.0rc1

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| keystone | * Other:   <https://review.opendev.org/c/openstack/keystonemiddleware/+/860481> |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

6.6 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | High |
  | Privileges required | High |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 6.6 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2447)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2022-2447)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2022-2447)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2022-2447)

### Related Ubuntu Security Notices (USN)

+ [USN-7926-1](https://usn.ubuntu.com/USN-7926-1)
+ OpenStack Keystone vulnerabilities
+ 11 December 2025

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2022-2447>