Check Point FireWall-1 4.0 and 4.1 allows remote attackers to cause a denial of service by sending a stream of invalid commands (such as binary zeros) to the SMTP Security Server proxy.Referenceshttp://www.checkpoint.com/techsupport/alerts/list_vun.html#SMTP_Securityhttp://www.osvdb.org/1438http://www.securityfocus.com/bid/1416http://www.securityfocus.com/templates/archive.pike?list=1&msg=Pine.LNX.3.96.1000630162106.4619C-100000%40fjord.fscinternet.com
