The host is installed with OS X Lion 10.7 through 10.7.5, OS X Lion Server 10.7 through 10.7.5, OS X Mountain Lion 10.8 through 10.8.3, Apple Mac OS X Server 10.6.8 or Apple Mac OS X 10.6.8 and is prone to man in the middle attack vulnerability. A flaw is present in the application, which can encrypt compressed data without properly obfuscating the length of the unencrypted data. Successful exploitation could allow an attacker to execute arbitrary code.