CVE-2003-0386
OpenSSH 3.6.1 and earlier, when restricting host access by numeric IP addresses and with VerifyReverseMapping disabled, allows remote attackers to bypass "from=" and "user@host" address restrictions by connecting to a host from a system whose reverse DNS hostname contains the numeric IP address.
Date published : 2003-06-10
http://www.securityfocus.com/bid/7831
http://www.securityfocus.com/archive/1/324016/2003-06-03/2003-06-09/0