CVE-2008-3438
Apple Mac OS X does not properly verify the authenticity of updates, which allows man-in-the-middle attackers to execute arbitrary code via a Trojan horse update, as demonstrated by evilgrade and DNS cache poisoning.
Date published : 2008-08-01
http://archives.neohapsis.com/archives/bugtraq/2008-07/0250.html
http://www.infobyte.com.ar/down/Francisco%20Amato%20-%20evilgrade%20-%20ENG.pdf