intel-amt-vulnerability-- memcmp and strncmp function calls can be skipped due to incorrect buffer l

原文如下：

https://www.embedi.com/news/what-you-need-know-about-intel-amt-vulnerability

攻击原理如下：

As the paper describes, the code checks user response as:

         if(strncmp(computed_response,user_response, response_length))

           exit(0x99);

the value of response_length depends on length ofuser_response. When no response from user, response_length will be 0, and the strncmp will also return 0 and pass the check. 

所以 strncmp、 strncpy 的函数调用的时候，需要注意这个问题，多做check.