缓冲区溢出攻击是黑客最常用的有效攻击手段之一,在溢出之后攻击者往往可以直接取得目标主机的最高权限,对计算机安全构成了极大的威胁.该文从分析缓冲区溢出攻击的原理入手,分析和研究了目前最常用的几种缓冲区溢出防御方法,并提出了一种基于内存地址确认的缓冲区溢出检测方法.“,”Buffer overflow attack is often used by hackers,the attacker can get the highest authority of the computer though it ,so it poses a great threat on computer security. This paper analyses the most commonly used methods on buffer overflow defense and presents a new detecting method of buffer overflow attacks based on address confirmation ,starting by analyzing the principle of buffer overflow attacks.