---
title: "CVE-2012-4413\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-2012-4413?format=md
keywords: index, follow
---

# CVE-2012-4413

Publication date 13 September 2012

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

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## Description

OpenStack Keystone 2012.1.3 does not invalidate existing tokens when
granting or revoking roles, which allows remote authenticated users to
retain the privileges of the revoked roles.

### From the Ubuntu Security Team

Dolph Mathews discovered that when roles are granted and revoked to
users in Keystone, pre-existing tokens were not updated or invalidated
to take the new roles into account. An attacker could use this to
continue to access resources that have been revoked.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2012-4413?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| keystone | 12.10 quantal | Not affected |
| 12.04 LTS precise | Fixed 2012.1+stable~20120824-a16a0ab9-0ubuntu2.2 |
| 11.10 oneiric | Ignored |
| 11.04 natty | Not in release |
| 10.04 LTS lucid | Not in release |
| 8.04 LTS hardy | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Notes

---

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

2012.2~rc1-0ubuntu1 on 12.10 includes the fixes
Keystone on 11.10 is a pre-release version and unusable with other
components such as nova and horizon

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-4413)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2012-4413)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2012-4413)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2012-4413)

### Related Ubuntu Security Notices (USN)

+ [USN-1564-1](https://usn.ubuntu.com/USN-1564-1)
+ OpenStack Keystone vulnerability
+ 13 September 2012

### Other references

* <https://lists.launchpad.net/openstack/msg16659.html>
* <https://www.cve.org/CVERecord?id=CVE-2012-4413>