This upstream bug: http://bugs.php.net/bug.php?id=15595 describes a buffer overflow that occurs when the php imap functions are used to view a malformed message. There is a patch in attachment 130838 [details]
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2006-0567.html