The internal DNS server in Samba 4.x before 4.1.23, 4.2.x before 4.2.9, 4.3.x before 4.3.6, and 4.4.x before 4.4.0rc4, when an AD DC is configured, allows remote authenticated users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from process memory by uploading a crafted DNS TXT record.
lists.opensuse.org/opensuse-security-announce/2016-03/msg00063.html
www.debian.org/security/2016/dsa-3514
www.securityfocus.com/bid/84273
www.securitytracker.com/id/1035219
www.ubuntu.com/usn/USN-2922-1
bugzilla.samba.org/show_bug.cgi?id=11128
bugzilla.samba.org/show_bug.cgi?id=11686
www.samba.org/samba/security/CVE-2016-0771.html