1. Ubuntu Security Notices
  2. USN-1831-1

USN-1831-1: OpenStack Nova vulnerability

Publication date

16 May 2013

Overview

Nova could be made to crash the system if instances used a specially crafted image.

Releases

Packages

  • nova - OpenStack Compute cloud infrastructure

Details

Loganathan Parthipan discovered that Nova did not verify the size of QCOW2
instance storage. An authenticated attacker could exploit this to cause a
denial of service by creating an image with a large virtual size with
little data, then filling the virtual disk.

Loganathan Parthipan discovered that Nova did not verify the size of QCOW2
instance storage. An authenticated attacker could exploit this to cause a
denial of service by creating an image with a large virtual size with
little data, then filling the virtual disk.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
13.04 raring python-nova –  1:2013.1-0ubuntu2.1
12.10 quantal python-nova –  2012.2.3-0ubuntu2.1
12.04 precise python-nova –  2012.1.3+stable-20130423-e52e6912-0ubuntu1.1

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References

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