samba is vulnerable to denial of service. An attacker is able to crash the AD DC LDAP server via dirsync resulting.
lists.opensuse.org/opensuse-security-announce/2019-11/msg00015.html
bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14847
lists.debian.org/debian-lts-announce/2021/05/msg00023.html
lists.fedoraproject.org/archives/list/[email protected]/message/OKPYHDFI7HRELVXBE5J4MTGSI35AKFBI/
lists.fedoraproject.org/archives/list/[email protected]/message/XQ3IUACPZJXSC4OM6P2V4IC4QMZQZWPD/
www.samba.org/samba/security/CVE-2019-14847.html
www.synology.com/security/advisory/Synology_SA_19_35