Apple released OS X Lion v10.7.2 yesterday along with an enormous security update that patches some 80 bugs in the various iterations of Apple s operating system. One of the patches fixes a highly critical vulnerability that enables an attacker to run code on a remote machine with a simple exploit. The other bugs fixed in the OS X update could lead to denials of service, escalation of privileges, and arbitrary code execution to name a few. The patch fixes various password authentication problems ranging from password interception to log-ins occurring without passwords.
Source: https://threatpost.com/apple-ships-mammoth-security-update-os-x-101311/75746/