What are BinHex and MacBinary files?
BinHex is a utility that encodes Macintosh files so that they can travel well on networks. BinHex encodes a file from its 8-bit binary or bit-stream representation into a 7-bit ASCII set of text characters. The recipient decodes it at the other end. MacBinary is a format for binary transfer of Macintosh documents over a telecommunication link. It is intended for use between Macintoshes and in uploading Macintosh documents to remote systems. How could an attacker exploit this vulnerability? An attacker would need to host an executable file on a web site, packaged as either a BinHex or MacBinary file, and then entice another user to visit the site and initiate a download. Once the download was complete, the executable file would automatically execute. What does the patch do? This patch updates Internet Explorer 5.1 to version 5.1.3 (build 3905) and prevents the Mac OS from automatically launching MacBinary and BinHex files. Where can I download the patch or how do I update my OS? Users m