Ubuntu Security Notice USN-2013-1
6th November, 2013
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS
MAAS could be made to run programs as an administrator.
- maas - Ubuntu MAAS Server
It was discovered that maas-import-pxe-files incorrectly loaded
configuration information from the current working directory. A local
attacker could execute code as an administrator if maas-import-pxe-files
were run from an attacker-controlled directory. (CVE-2013-1057)
It was discovered that maas-import-pxe-files doesn't cryptographically
verify downloaded content. An attacker could modify images without
The problem can be corrected by updating your system to the following package version:
- Ubuntu 13.04:
- maas-cluster-controller 1.3+bzr1461+dfsg-0ubuntu2.3
- Ubuntu 12.10:
- maas-cluster-controller 1.2+bzr1373+dfsg-0ubuntu1.1
- Ubuntu 12.04 LTS:
- maas-cluster-controller 1.2+bzr1373+dfsg-0ubuntu1~12.04.4
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.