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Do we know that the users (keystone, neutron...) aren't vulnerable?

From https://pypi.python.org/pypi/defusedxml#python-xml-libraries it sure seems like we would likely still have issues if custom implementations are being used/created. Perhaps we should just use the defusedxml libraries until proven otherwise (better to be safe than sorry).

On Sep 29, 2014, at 9:03 AM, Julien Danjou <julien at danjou.info> wrote:

> Hi,
> 
> I was looking at xmlutils today, and I took a look at the history of
> this file that seems to come from a CVE almost 2 years ago.
> 
> What is surprising is that, unless I missed something, the only user of
> that lib is Nova. Other projects such as Keystone or Neutron implemented
> things in a different way.
> 
> It seems that Python fixed that issue with 2 modules released on PyPI:
> 
>  https://pypi.python.org/pypi/defusedxml
>  https://pypi.python.org/pypi/defusedexpat
> 
> I'm no XML expert, and I've only a shallow understanding of the issue,
> but I wonder if we should put some efforts to drop xmlutils and our
> custom XML fixes to used instead these 2 modules.
> 
> Hint appreciated.
> 
> -- 
> Julien Danjou
> /* Free Software hacker
>   http://julien.danjou.info */
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