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math: p_median: Fix for stack overflow weakness. #170

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math: p_median: Fix for stack overflow weakness. #170

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Commits on Jun 20, 2015

  1. math: p_median: Fix for stack overflow weakness. 

    The use of variable length arrays (VLA) without any size range checking is a security weakness that can be used to provoke a stack overflow that may lead to an arbitrary code execution vu$

My proposed fix simply uses dynamic memory allocation over VLA.

For more information regarding proper use of VLA, please read:
https://www.securecoding.cert.org/confluence/display/c/ARR32-C.+Ensure+size+arguments+for+variable+length+arrays+are+in+a+valid+range

Signed-off-by: Giancarlo Canales Barreto <gcanalesb@me.com>
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    gcanalesb committed Jun 20, 2015
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