Describe the main characteristics of buffer overflow attacks for SMTP servers.

What will be an ideal response?

A buffer overflow is one of the main types of attacks on the Internet. Hackers may try to overflow the buffer of the user's system. In this instance, a very long username, password, or file name is sent to the server. By doing this, a hacker may be able to disrupt a running process and insert malicious code to be executed on the server.?Hackers can create a buffer overflow on a system by sending a long HELO command, long e-mail names in MAIL or RCPT commands, or a long command. For example, a HELO argument of over 10,000 characters may overflow the buffer, and a HELO argument of over 12,000 characters may even crash the server.