Sendmail mail.local DOS

mail.local in the remote sendmail server, according to its version number, does not properly identify the .\n string which identifies the end of message text, which allows a remote attacker to cause a denial of service or corrupt mailboxes via a message line that is 2047 characters long and ends in .\n.
Install sendmail version 8.10.0 and higher, or install a vendor supplied patch.