Provide references for CVE-2019-20839.
Where can I find more information about CVE-2019-20839?
References are available at: https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13, https://github.com/LibVNC/libvncserver/commit/3fd03977c9b35800d73a865f167338cb4d05b0c1, https://lists.debian.org/debian-lts-announce/2020/06/msg00035.html, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVP7TJVYJDXDFRHVQ3ENEN3H354QPXEZ/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4F6FUH4EFK4NAP6GT4TQRTBKWIRCZLIY/, http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.html, http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.html, http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.html, https://usn.ubuntu.com/4434-1/, https://lists.debian.org/debian-lts-announce/2020/08/msg00045.html, https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf.