Many well used UNIX applications, including LPR, xterm and eject, have been abused into giving up root through exploit of buffer overflow in suid regions of the code.
许多用得很好的UNIX应用程序，包括lpr、xterm和eject，都被滥用，而在程序码的suid栏位中利用缓冲区溢位放弃了root权限。
These verification steps ensure that the code is well-formed--that it doesn't overflow or underflow the stack or contain illegal byte-codes, for example.
这个确认步骤保证代码是格式优良的——不会上溢或者下溢栈或者含有非法字节码。
When well, the purpose of installing Downhole Blowout Preventer in the event of overflow which from the underground near the source.
安装井下防喷器的目的是在发生井涌或溢流的时候，从井下源头附近就能够阻止井喷。
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