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That version also contains the bug and was intended to work for arrays with up to 2^64 elements. However, on current machines it is not possible to trigger an out-of-bounds error in the Python version: it allocates 85 elements for runLen, which suffices (following our analysis in the full paper) for arrays with less than 2^49 elements. For comparison, ...


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If the server has a poorly implemented buffer somewhere, it may cause a crash if the data exceeds what the buffer was initially set up to expect. In low level languages in C++, it is easy to set up poorly defined buffers this way, and a crash is good evidence that an exploitable error might exist. https://www.owasp.org/index.php/Buffer_overflow_attack ...



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