Ubuntu Security Notice USN-3217-1
7th March, 2017
A security issue affects these releases of Ubuntu and its
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
The system could be made to expose sensitive information.
– GNOME frontend for NetworkManager
It was discovered that network-manager-applet incorrectly checked
permissions when connecting to certain wireless networks. A local attacker
could use this issue at the login screen to access local files.
The problem can be corrected by updating your system to the following
- Ubuntu 16.10:
- Ubuntu 16.04 LTS:
- Ubuntu 14.04 LTS:
- Ubuntu 12.04 LTS:
To update your system, please follow these instructions:
After a standard system update you need to reboot your computer to make
all the necessary changes.