Provide references for CVE-2017-16876.
Where can I find more information about CVE-2017-16876?
References are available at: https://github.com/lepture/mistune/blob/master/CHANGES.rst, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NUR3GMHQBMA3UC4PFMCK6GCLOQC4LQQC/, https://github.com/lepture/mistune/commit/5f06d724bc05580e7f203db2d4a4905fc1127f98, https://bugzilla.redhat.com/show_bug.cgi?id=1524596.