Provide references for CVE-2018-19787.
Where can I find more information about CVE-2018-19787?
References are available at: https://usn.ubuntu.com/3841-1/, https://lists.debian.org/debian-lts-announce/2018/12/msg00001.html, https://usn.ubuntu.com/3841-2/, https://github.com/lxml/lxml/commit/6be1d081b49c97cfd7b3fbd934a193b668629109, https://lists.debian.org/debian-lts-announce/2020/11/msg00044.html.