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[Colleen Murphy <colleen@xxxxxxxxxxx>]

** Changed in: keystone
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1750843

Title:
  pysaml2 version in global requirements must be updated to 4.5.0

Status in OpenStack Identity (keystone):
  Fix Released
Status in OpenStack Global Requirements:
  Fix Released

Bug description:
  As per security vulnerability CVE-2016-10149, XML External Entity
  (XXE) vulnerability in PySAML2 4.4.0 and earlier allows remote
  attackers to read arbitrary files via a crafted SAML XML request or
  response and it has a CVSS v3 Base Score of 7.5.

  The above vulnerability has been fixed in version 4.5.0 as per
  https://github.com/rohe/pysaml2/issues/366. The latest version of
  pysaml2 (https://pypi.python.org/pypi/pysaml2/4.5.0) has this fix.
  However, the global requirements has the version set to < 4.0.3

  https://github.com/openstack/requirements/blob/master/global-requirements.txt#L230
  pysaml2>=4.0.2,<4.0.3

  https://github.com/openstack/requirements/blob/master/upper-constraints.txt#L347
  pysaml2===4.0.2

  The version of pysaml2 supported for OpenStack should be updated such
  that OpenStack deployments are not vulnerable to the above mentioned
  CVE.

  pysaml2 is used by OpenStack Keystone for identity Federation. This
  bug in itself is not a security vulnerability but not fixing this bug
  causes OpenStack deployments to be vulnerable.

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