0-day unpatched vulnerability in Apple AirPort

[HectorGonzales]

I'm getting really scared about Apple security. A friend just sent me this link:

http://seclists.org/fulldisclosure/2010/Mar/106?utm_source=twitterfeed&utm_medium=twitter

So if I have ftp enabled, then someone can make portscans from my IP? What's going on here??