"Attack Detected!"

When I go to www.adobe.com and try and download Adobe Reader, a COMODO safesurf comes up and says

Attack Detected!

Application: Microsoft Corporation
Publisher: Unknown

Comodo safe surf blocked this application from executing a possible buffer overflow attack.

What is a buffer overflow attack? and why does it come up when i am trying to download adobe ive never had any problems before with adobe or with Comodo. Any help with what to do or how to stop this from happening Thanks!

In computer security and programming, a buffer overflow, or buffer overrun, is an anomalous condition where a process attempts to store data beyond the boundaries of a fixed-length buffer. The result is that the extra data overwrites adjacent memory locations. The overwritten data may include other buffers, variables and program flow data, and may result in erratic program behavior, a memory access exception, program termination (a crash), incorrect results or ― especially if deliberately caused by a malicious user ― a possible breach of system security.
Buffer overflows can be triggered by inputs specifically designed to execute malicious code or to make the program operate in an unintended way. As such, buffer overflows cause many software vulnerabilities and form the basis of many exploits.(from Wikipedia)
at times this happens with genuine safe applications…its ok