Provide references for CVE-2019-20373.
Where can I find more information about CVE-2019-20373?
References are available at: https://git.launchpad.net/~ltsp-upstream/ltsp/+git/ldm/commit/?id=c351ac69ef63ed6c84221cef73e409059661b8ba, https://www.debian.org/security/2020/dsa-4601, https://lists.debian.org/debian-lts-announce/2020/01/msg00007.html.