Provide references for CVE-2018-21029.
Where can I find more information about CVE-2018-21029?
References are available at: https://github.com/systemd/systemd/issues/9397, https://blog.cloudflare.com/dns-encryption-explained/, https://github.com/systemd/systemd/blob/v243/src/resolve/resolved-dnstls-gnutls.c#L62-L63, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4NLJVOJMB6ANDILRLDZK26YGLYBEPHKY/, https://security.netapp.com/advisory/ntap-20191122-0002/, https://github.com/systemd/systemd/pull/13870, https://github.com/systemd/systemd/blob/v243/man/resolved.conf.xml#L196-L207, https://github.com/systemd/systemd/blob/v239/man/resolved.conf.xml#L199-L207, https://tools.ietf.org/html/rfc7858#section-4.1.