Ubuntu Security Notice 2431-2 - USN-2431-1 fixed vulnerabilities in mod_wsgi. The security update exposed an issue in the MAAS package, causing a regression. This update fixes the problem. It was discovered that mod_wsgi incorrectly handled errors when setting up the working directory and group access rights. A malicious application could possibly use this issue to cause a local privilege escalation when using daemon mode. Various other issues were also addressed.
8965efe46f7ab5e031a18546d5a1f330bfad140ccdcf5b123b25ef1469b7ea4b
============================================================================
Ubuntu Security Notice USN-2431-2
December 04, 2014
maas regression
============================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary:
USN-2431-1 caused a regression in the MAAS package.
Software Description:
- maas: Ubuntu MAAS Server
Details:
USN-2431-1 fixed vulnerabilities in mod_wsgi. The security update exposed
an issue in the MAAS package, causing a regression. This update fixes the
problem.
We apologize for the inconvenience.
Original advisory details:
It was discovered that mod_wsgi incorrectly handled errors when setting up
the working directory and group access rights. A malicious application
could possibly use this issue to cause a local privilege escalation when
using daemon mode.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.10:
maas-region-controller-min 1.7.0~beta8+bzr3272-0ubuntu1.2
Ubuntu 14.04 LTS:
maas-region-controller-min 1.5.4+bzr2294-0ubuntu1.2
Ubuntu 12.04 LTS:
maas-region-controller 1.2+bzr1373+dfsg-0ubuntu1~12.04.6
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2431-2
http://www.ubuntu.com/usn/usn-2431-1
https://launchpad.net/bugs/1399016
Package Information:
https://launchpad.net/ubuntu/+source/maas/1.7.0~beta8+bzr3272-0ubuntu1.2
https://launchpad.net/ubuntu/+source/maas/1.5.4+bzr2294-0ubuntu1.2
https://launchpad.net/ubuntu/+source/maas/1.2+bzr1373+dfsg-0ubuntu1~12.04.6