Provide references for CVE-2019-20911.
Where can I find more information about CVE-2019-20911?
References are available at: https://github.com/LibreDWG/libredwg/issues/178, https://github.com/LibreDWG/libredwg/commit/c6f6668b82bfe595899cc820279ac37bb9ef16f5.