Postfix 1.1.11 and earlier allows remote attackers to use Postfix to conduct "bounce scans" or DDos attacks of other hosts via an email address to the local host containing the target IP address and service name followed by a "!" string, which causes Postfix to attempt to use SMTP to communicate with the target on the associated port.
|15200||Debian DSA-363-1 : postfix - denial of service, bounce-scanning||Nessus||Debian Local Security Checks|
|14063||Mandrake Linux Security Advisory : postfix (MDKSA-2003:081)||Nessus||Mandriva Local Security Checks|
|13802||SUSE-SA:2003:033: postfix||Nessus||SuSE Local Security Checks|
|11820||Postfix < 2.0 Multiple Vulnerabilities||Nessus||SMTP problems|