Ubuntu Security Notice USN-1456-1
31st May, 2012
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS
Nut could be made to crash if it received specially crafted network traffic.
- nut - Network UPS tools
Sebastian Pohle discovered that Nut did not properly validate its input
when receiving data over the network. If upsd was configured to allow
connections over the network, a remote attacker could exploit this to
cause a denial of service (application crash).
The problem can be corrected by updating your system to the following package version:
- Ubuntu 12.04 LTS:
- nut-server 2.6.3-1ubuntu1.1
- Ubuntu 11.10:
- nut-server 2.6.1-2ubuntu2.1
- Ubuntu 11.04:
- nut 2.6.0-1ubuntu3.1
- Ubuntu 10.04 LTS:
- nut 2.4.3-1ubuntu3.2
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.