"A new BIOS update is available for selected Intel desktop motherboards
to ensure proper configuration settings. These changes would prevent a
malicious user from modifying software that is run in System Management
Mode (SMM). SMM is a privileged operating environment running outside of
OS control. Malicious software running in this environment could
therefore perform any number of operations. Administrative level
privileges are required to exploit this issue."
It is recommended that systems with Intel Bios be checked for updates
that could mitigate this type of attack.