Ubuntu Security Notice USN-1963-1
18th September, 2013
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS
usb-creator could be tricked into bypassing polkit authorizations.
- usb-creator - create a startup disk using a CD or disc image
It was discovered that usb-creator was using polkit in an unsafe manner. A
local attacker could possibly use this issue to bypass intended polkit
The problem can be corrected by updating your system to the following package version:
- Ubuntu 13.04:
- usb-creator-common 0.2.47.1
- Ubuntu 12.10:
- usb-creator-common 0.2.40ubuntu2
- Ubuntu 12.04 LTS:
- usb-creator-common 0.2.38.2
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make
all the necessary changes.