Or you can update your bash from Apple's Support Site, http://support.apple.com/downloads/ http://support.apple.com/downloads/ I don't know if it fixes the mo

Or you can update your bash from Apple's Support Site, http://support.apple.com/downloads/ http://support.apple.com/downloads/ I don't know if it fixes the more recently found bash vulnerabilities, but I know it fixes the first one that was reported. You can find versions for Lion and Mountain Lion if you search.