SpamProbe 0.8a allows remote attackers to cause a denial of service (crash) via HTML e-mail with newline characters within an href tag, which is not properly handled by certain regular expressions.
https://exchange.xforce.ibmcloud.com/vulnerabilities/11247
http://www.securitytracker.com/id?1006038
http://www.securityfocus.com/bid/6739
http://sourceforge.net/project/shownotes.php?release_id=137128