USN-2297-1: acpi-support vulnerability

22 July 2014

acpi-support vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 12.04 LTS


The system could be made to run programs as an administrator.

Software Description

  • acpi-support - scripts for handling many ACPI events


CESG discovered that acpi-support incorrectly handled certain privileged operations when checking for power management daemons. A local attacker could use this flaw to execute arbitrary code and elevate privileges to root.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.04 LTS
acpi-support - 0.140.2

To update your system, please follow these instructions:

In general, a standard system update will make all the necessary changes.