A simple question about the "Security Advisories"

[<RobinShi@viatech.com.cn>]

Title: A simple question about the "Security Advisories"

Hello,
     I am new bee to Debian.
I notice the "Security Advisories" on the main page of Debian.

Is there an auto-update tool in the debian system
which can auto update software and auto fix some
bugs make me needn't to take care about the "Security Advisories"?

Thanks.