---
title: "CVE-2013-6437\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-2013-6437?format=md
keywords: index, follow
---

# CVE-2013-6437

Publication date 6 March 2014

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

The libvirt driver in OpenStack Compute (Nova) before 2013.2.2 and icehouse
before icehouse-2 allows remote authenticated users to cause a denial of
service (disk consumption) by creating and deleting instances with unique
os\_type settings, which triggers the creation of a new ephemeral disk
backing file.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2013-6437?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| nova | 13.10 saucy | Not affected |
| 13.04 raring | Ignored end of life |
| 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-2013-6437?format=md#patch-details)

## Notes

---

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

OSSA 2013-037
in precise and quantal, code is in connection.py
seems to be introduced by:
https://git.openstack.org/cgit/openstack/nova/commit/nova/virt/libvirt/driver.py?id=0cecdf4b8632d3a4eea816869796b03e8b928256

### 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 |
| --- | --- |
| nova | * Upstream:   <https://review.openstack.org/62910> * Upstream:   <https://review.openstack.org/62912> * Upstream:   <https://review.openstack.org/62913> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6437)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2013-6437)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2013-6437)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2013-6437)

### Other references

* <http://lists.openstack.org/pipermail/openstack-announce/2013-December/000179.html>
* <https://www.cve.org/CVERecord?id=CVE-2013-6437>