Comment 8 for bug 1732155

Reviewed: https://review.openstack.org/528516
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=4137c33922051546d45b6c9aa730433a401e3df1
Submitter: Zuul
Branch: master

commit 4137c33922051546d45b6c9aa730433a401e3df1
Author: Sean McGinnis <email address hidden>
Date: Sat Dec 16 17:38:41 2017 -0600

    Use defusedxml for XML parsing

    The built-in xml module has some vulnerabilities to several known
    XML attacks. While the chances of this are limited with the way
    it is being used by some of the volume drivers, it is still a
    security risk that has been identified and has a mostly painless
    way to be mitigated with the defusedxml package [1].

    There are still some drivers performing XML parsing that are not
    covered by this patch. They need closer analysis to see how to
    best switch to the defusedxml equivalents.

    This patch covers the instances where it was a mostly drop in and
    replace from the native xml functionality to the defusedxml
    alternatives.

    [1] https://github.com/tiran/defusedxml/blob/master/README.md

    Change-Id: I083fc23eab6f712264919a250c6fb57cc0f6a11b
    Partial-bug: #1732155