A flaw was found in samba 4.0.0 before samba 4.9.15 and samba 4.10.x before 4.10.10. An attacker can crash AD DC LDAP server via dirsync resulting in denial of service. Privilege escalation is not possible with this issue.
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00015.html
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14847
https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html
https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html