• 

Among a long list of other vulnerabilities, this patch addresses an issue where an attacker on the same wi-fi network could cause a system reset, which is often a precursor to taking control. That said, this is an important update for all Mac OS X 10.5.x client and server users

• Security Update 2011-001 (Leopard – Client), 241.35MB
— Issues addressed by this update

• Security Update 2011-001 (Leopard – Server), 473.23MB
— Issues addressed by this update

See also: Mac OS X 10.6.7 Update

•