Nova could be made to overwrite or corrupt arbitrary files in the compute host file system.
Matthias Weckbecker discovered that, when using the OpenStack API to setup libvirt-based hypervisors, an authenticated user could inject files in arbitrary locations on the file system of the host running Nova. A remote attacker could use this to gain root privileges. This issue only affects Ubuntu 12.04 LTS. (CVE-2012-3360)
3 July 2012
A security issue affects these releases of Ubuntu and its derivatives:
Nova could be made to overwrite or corrupt arbitrary files in the compute host file system.
Matthias Weckbecker discovered that, when using the OpenStack API to setup libvirt-based hypervisors, an authenticated user could inject files in arbitrary locations on the file system of the host running Nova. A remote attacker could use this to gain root privileges. This issue only affects Ubuntu 12.04 LTS. (CVE-2012-3360)
Pádraig Brady discovered that an authenticated user could corrupt arbitrary files of the host running Nova. A remote attacker could use this to cause a denial of service or possibly gain privileges. (CVE-2012-3361)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.