USN-1831-2: OpenStack Nova regression
Publication date
29 May 2013
Overview
USN-1831-1 introduced a regression in OpenStack Nova.
Releases
Packages
- nova - OpenStack Compute cloud infrastructure
Details
USN-1831-1 fixed a vulnerability in OpenStack Nova. The upstream fix
introduced a regression where instances using uncached QCOW2 images would
fail to start. This update fixes the problem.
We apologize for the inconvenience.
Original advisory 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.
USN-1831-1 fixed a vulnerability in OpenStack Nova. The upstream fix
introduced a regression where instances using uncached QCOW2 images would
fail to start. This update fixes the problem.
We apologize for the inconvenience.
Original advisory 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.
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 | ||
|---|---|---|---|
| 12.10 quantal | python-nova – 2012.2.3-0ubuntu2.2 | ||
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