The host is missing a security update according to Apple advisory, APPLE-SA-2014-12-22-1. The update is required to fix an arbitrary code execution vulnerability. The flaw is present in the application, which fails to handle a crafted packet, related to (1) the crypto_recv function when the Autokey Authentication feature is used, (2) the ctl_putdata function, and (3) the configure function. Successful exploitation allows attackers to execute arbitrary code.