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Vulnerability of Samba: denial of service via AD DC Zone-named Record

Synthesis of the vulnerability 

An attacker can trigger a fatal error via AD DC Zone-named Record of Samba, in order to trigger a denial of service.
Vulnerable software: Fedora, openSUSE Leap, Samba, SLES, Synology DSM, Ubuntu.
Severity of this announce: 2/4.
Creation date: 10/12/2019.
Références of this computer vulnerability: CERTFR-2019-AVI-614, CVE-2019-14861, FEDORA-2019-11dddb785b, FEDORA-2019-be98a08835, openSUSE-SU-2019:2700-1, SUSE-SU-2019:3319-1, Synology-SA-19:40, USN-4217-1, USN-4217-2, VIGILANCE-VUL-31099.

Description of the vulnerability 

An attacker can trigger a fatal error via AD DC Zone-named Record of Samba, in order to trigger a denial of service.
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This computer vulnerability alert impacts software or systems such as Fedora, openSUSE Leap, Samba, SLES, Synology DSM, Ubuntu.

Our Vigil@nce team determined that the severity of this computer threat alert is medium.

The trust level is of type confirmed by the editor, with an origin of user account.

An attacker with a expert ability can exploit this security vulnerability.

Solutions for this threat 

Samba: version 4.11.3.
The version 4.11.3 is fixed:
  https://www.samba.org/samba/download/

Samba: version 4.10.11.
The version 4.10.11 is fixed:
  https://www.samba.org/samba/download/

Samba: version 4.9.17.
The version 4.9.17 is fixed:
  https://www.samba.org/samba/download/

Fedora: new samba packages.
New packages are available:
  Fedora 30: samba 4.10.11-0.fc30
  Fedora 31: samba 4.11.3-0.fc31

openSUSE Leap 15.1: new samba packages.
New packages are available:
  openSUSE Leap 15.1: samba 4.9.5+git.224.86a8e66adea-lp151.2.12.1

SUSE LE 15 SP1: new samba packages.
New packages are available:
  SUSE LE 15 SP1: samba 4.9.5+git.224.86a8e66adea-3.18.1

Synology DSM: version 6.2.3-25423.
The version 6.2.3-25423 is fixed:
  https://www.synology.com/

Ubuntu: new samba packages.
New packages are available:
  Ubuntu 19.10: samba 2:4.10.7+dfsg-0ubuntu2.3
  Ubuntu 19.04: samba 2:4.10.0+dfsg-0ubuntu2.7
  Ubuntu 18.04 LTS: samba 2:4.7.6+dfsg~ubuntu-0ubuntu2.14
  Ubuntu 16.04 LTS: samba 2:4.3.11+dfsg-0ubuntu0.16.04.24
  Ubuntu 14.04 ESM: samba 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4

Wind River Linux: version 10.17.41.21.
The version 10.17.41.21 is fixed:
  https://support2.windriver.com/

Wind River Linux: version 10.19.45.3.
The version 10.19.45.3 is fixed:
  https://support2.windriver.com/
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