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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.

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Vulnerability Assessment Details

Notes MTA denial

Vulnerability Assessment Summary
Crashes the remote SMTP server

Detailed Explanation for this Vulnerability Assessment

It was possible to perform a denial of service against the remote
SMTP server by sending it two HELO commands followed by a too long argument.

This problem permits a possible hacker to prevent your SMTP server from sending or
receiving emails, thus preventing you from working properly.

Solution : contact your vendor for a patch, or change your MTA.

Network Security Threat Level: Medium

Networks Security ID:

Vulnerability Assessment Copyright: This script is Copyright (C) 1999 Renaud Deraison

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