Provide references for CVE-2020-5227.
Where can I find more information about CVE-2020-5227?
References are available at: https://github.com/lkiesow/python-feedgen/security/advisories/GHSA-g8q7-xv52-hf9f, https://docs.microsoft.com/en-us/archive/msdn-magazine/2009/november/xml-denial-of-service-attacks-and-defenses, https://github.com/lkiesow/python-feedgen/commit/f57a01b20fa4aaaeccfa417f28e66b4084b9d0cf, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T6I5ENUYGFNMIH6ZQ62FZ6VU2WD3SIOI/.