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Sendmail < 8.9.3 Header Parsing Redirection DoS



The remote host is vulnerable to a Denial of Service (DoS) attack.


The remote Sendmail server has a flaw in the way it processes the headers of messages. An attacker may exploit this flaw to force this server to fail by sending an e-mail with a large number of headers.


Upgrade to Sendmail 8.9.3 or higher.