V2EX buffer overflow

Buffer Overflow

释义 Definition

缓冲区溢出:在计算机中,程序向一块固定大小的内存缓冲区写入了超过其容量的数据,导致相邻内存被覆盖,可能引发崩溃、数据损坏,甚至被利用来执行恶意代码(常见安全漏洞类型之一)。

发音 Pronunciation (IPA)

/bfr ovrflo/

例句 Examples

A buffer overflow can crash the program.
缓冲区溢出会导致程序崩溃。

If the input isn’t properly checked, a buffer overflow may allow an attacker to overwrite memory and take control of the system.
如果没有正确检查输入,缓冲区溢出可能让攻击者覆写内存并控制系统。

词源 Etymology

buffer 原意与“缓冲、减震”相关,后来在计算机领域引申为“用于临时存放数据的一块内存区域”;overflow 来自 “over-(超过)+ flow(流动)”,表示“溢出、超出容量”。合在一起,“buffer overflow”直译即“缓冲区(容量)被写满后仍继续写入而溢出”。

相关词 Related Words

文学与著作中的用例 Literary & Notable Works

  • Hacking: The Art of Exploitation(Jon Erickson)以缓冲区溢出作为经典漏洞案例进行讲解与演示。
  • Smashing the Stack for Fun and Profit(Aleph One,发表于 Phrack)安全领域著名文章,系统介绍利用栈溢出(常与 buffer overflow 紧密相关)的思路。
  • *Secure Coding in C and C++*(Robert C. Seacord)讨论缓冲区溢出等常见缺陷与防护实践。
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