[Openstack-security] [Bug 1246160] Re: shuffle method bring potential security issue

Sean Dague sean at dague.net
Wed Jun 14 15:28:29 UTC 2017


There is really very low exposure here

** Changed in: nova
       Status: Confirmed => Opinion

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https://bugs.launchpad.net/bugs/1246160

Title:
  shuffle method bring potential security issue

Status in OpenStack Compute (nova):
  Opinion
Status in OpenStack Security Advisory:
  Invalid

Bug description:
  In the /nova/utils.py, line 328, the source code is below

              r.shuffle(password)

  This code is using shuffle method to generate a random number,
  Standard random number generators should not be used to generate
  randomness used for security reasons. For security sensitive
  randomness a crytographic randomness generator that provides
  sufficient entropy should be used.

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