sendmail hole

["Dr. Frederick B. Cohen" <fc @ all . net>]

Does anyone know what the hole is and how to test for it?
As usual, I have uploaded the CERT advisory and it tells me
nothing about how to test for it or what it is (other than a
newline in the address field causing problems).

I would very much like to be able to add a test for it to
our test set. - FC