---
title: "CVE-2012-2101\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-2012-2101?format=md
keywords: index, follow
---

# CVE-2012-2101

Publication date 19 April 2012

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

Toggle side navigation

## Description

Openstack Compute (Nova) Folsom, 2012.1, and 2011.3 does not limit the
number of security group rules, which allows remote authenticated users
with certain permissions to cause a denial of service (CPU and hard drive
consumption) via a network request that triggers a large number of iptables
rules.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| nova | 12.10 quantal | Fixed 2012.1-0ubuntu2.1 |
| 12.04 LTS precise | Fixed 2012.1-0ubuntu2.1 |
| 11.10 oneiric | Fixed 2011.3-0ubuntu6.6 |
| 11.04 natty | Ignored end of life |
| 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)
* [Patch details](https://ubuntu.com/security/CVE-2012-2101?format=md#patch-details)

### 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:   [a67db45](https://github.com/openstack/nova/commit/a67db4586f70ed881d65e80035b2a25be195ce64) * Upstream:   [8c8735a](https://github.com/openstack/nova/commit/8c8735a73afb16d5856f0aa6088e9ae406c52beb) |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2101)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2012-2101)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2012-2101)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2012-2101)

### Related Ubuntu Security Notices (USN)

+ [USN-1438-1](https://usn.ubuntu.com/USN-1438-1)
+ Nova vulnerability
+ 3 May 2012

### Other references

* <https://lists.launchpad.net/openstack/msg10268.html>
* <https://www.cve.org/CVERecord?id=CVE-2012-2101>