On Thu, Feb 21, 2013 at 11:12 AM, Christian Heimes <christ...@python.org>wrote:
> Am 21.02.2013 19:39, schrieb Eli Bendersky: > > Just to clarify for my own curiosity. These attacks (e.g. > > http://en.wikipedia.org/wiki/Billion_laughs) have been known and public > > since 2003? > > Correct, see https://pypi.python.org/pypi/defusedxml#synopsis third > paragraph. All XML attacks in my analysis are well known for years, > billion laughs for about a decade. > > As far as I know it's the first time somebody has compiled and published > a detailed list of vulnerabilities in Python's XML libraries. However > I'm not the only one. OpenStack and Django were contacted by several > people in the past few weeks, too. > Thanks, Christian. I think this should put the urgency of the fix into context. While I agree that we should work on making future versions resilient by default, I have doubts about the urgency of back-patching existing, in-mainteinance-mode stable versions with something that's not opt-in. Eli
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