A denial of service vulnerability was discovered in Samba’s LDAP server before versions 4.7.12, 4.8.7, and 4.9.3. A CNAME loop could lead to infinite recursion in the server. An unprivileged local attacker could create such an entry, leading to denial of service.
www.securityfocus.com/bid/106022
bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14629
lists.debian.org/debian-lts-announce/2018/12/msg00005.html
security.gentoo.org/glsa/202003-52
security.netapp.com/advisory/ntap-20181127-0001/
usn.ubuntu.com/3827-1/
usn.ubuntu.com/3827-2/
www.debian.org/security/2018/dsa-4345
www.samba.org/samba/security/CVE-2018-14629.html