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

Jeremy Stanley fungi at yuggoth.org
Tue Nov 12 01:43:08 UTC 2013


** Information type changed from Private Security to Public

** Changed in: ossa
       Status: Incomplete => Invalid

** Tags added: security

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

Title:
  shuffle method bring potential security issue

Status in OpenStack Compute (Nova):
  New
Status in OpenStack Security Advisories:
  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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