An attacker may be able to exploit a buffer overflow by changing the value of other data in the function; none of these approaches counter that.
攻击者也许能够通过改变函数中其他数据的值来利用缓冲区溢出；没有哪种方法能够防止这点。
This makes it much harder to manipulate the return address, but it doesn't defend against buffer overflow attacks that change the data of calling functions.
这样使得操纵返回地址困难多了，但它不会阻止改变调用函数的数据的缓冲区溢出攻击。
The data are extremely discouraging since the buffer overflow problem has been widely known in security circles for years.
由于缓冲区溢位问题近年来在安全性领域中已受到瞩目，这一资料是相当令人灰心的。
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