Provide references for CVE-2018-20481.
Where can I find more information about CVE-2018-20481?
References are available at: https://gitlab.freedesktop.org/poppler/poppler/issues/692, https://gitlab.freedesktop.org/poppler/poppler/merge_requests/143, https://usn.ubuntu.com/3865-1/, https://lists.debian.org/debian-lts-announce/2019/03/msg00008.html, http://www.securityfocus.com/bid/106321, https://access.redhat.com/errata/RHSA-2019:2022, https://access.redhat.com/errata/RHSA-2019:2713, https://lists.debian.org/debian-lts-announce/2020/07/msg00018.html.