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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.

Home >> Browse Vulnerability Assessment Database >> SMTP problems >> CMail's MAIL FROM overflow

Vulnerability Assessment Details

CMail's MAIL FROM overflow

Vulnerability Assessment Summary
Overflows a buffer in the remote mail server

Detailed Explanation for this Vulnerability Assessment

There seem to be a buffer overflow in the remote SMTP server
when the server is issued a too long argument to the 'MAIL FROM'
command, like :

MAIL FROM: AAA[...][email protected]

Where AAA[...]AAA contains more than 8000 'A's.

This problem may permit a possible hacker to prevent this host
to act as a mail host and may even permit him to execute
arbitrary code on this system.

Solution : Contact your vendor for a patch

Network Security Threat Level: High

Networks Security ID: 633

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

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