Apple Safari before 3.2.2 processes a 3xx HTTP CONNECT response before a successful SSL handshake, which allows man-in-the-middle attackers to execute arbitrary web script, in an https site's context, by modifying this CONNECT response to specify a 302 redirect to an arbitrary https web site.

More... (http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-2062)