Heap-based buffer overflow in the message decoding functionality for PGP Outlook Encryption Plug-In, as used in NAI PGP Desktop Security 7.0.4, Personal Security 7.0.3, and Freeware 7.0.3, allows remote attackers to modify the heap and gain privileges via a large, malformed mail message.
http://www.securityfocus.com/bid/5202
http://www.kb.cert.org/vuls/id/821139
http://www.iss.net/security_center/static/9525.php
http://marc.info/?l=ntbugtraq&m=102639521518942&w=2