---
title: "CVE-2013-6391\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-2013-6391?format=md
keywords: index, follow
---

# CVE-2013-6391

Publication date 11 December 2013

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

The ec2tokens API in OpenStack Identity (Keystone) before Havana 2013.2.1
and Icehouse before icehouse-2 does not return a trust-scoped token when
one is received, which allows remote trust users to gain privileges by
generating EC2 credentials from a trust-scoped token and using them in an
ec2tokens API request.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2013-6391?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| keystone | 13.10 saucy | Fixed 1:2013.2-0ubuntu1.2 |
| 13.04 raring | Ignored |
| 12.10 quantal | Not affected |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | 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)
* [Patch details](https://ubuntu.com/security/CVE-2013-6391?format=md#patch-details)

## Notes

---

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

OSSA 2013-032

---

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

per upstream, Ubuntu 13.04 not affected due to improper check which
disables impersonation entirely. Upstream has not released a patch yet for
grizzly (Ubuntu 13.04) as of 2013-12-17. A fix for Ubuntu 13.04 may happen
in a future update.

### 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 | * Upstream:   <https://review.openstack.org/61425> * Upstream:   <https://review.openstack.org/61419> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6391)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2013-6391)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2013-6391)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2013-6391)

### Related Ubuntu Security Notices (USN)

+ [USN-2061-1](https://usn.ubuntu.com/USN-2061-1)
+ OpenStack Keystone vulnerability
+ 19 December 2013

### Other references

* <http://lists.openstack.org/pipermail/openstack-announce/2013-December/000168.html>
* <https://www.cve.org/CVERecord?id=CVE-2013-6391>