CVE-2018-16851

samba: NULL pointer de-reference in Samba AD DC LDAP server

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Severity

Moderate

Red Hat Product Security

6.5

CVSS 3.0

Review impact separately from score.

Published · November 20, 2018

Updated · November 22, 2025

Description

A null pointer dereference was found in the way LDAP search was implemented when Samba is used as Active Directory Domain Controller. A remote, authenticated attacker could use this flaw to cause a denial of service (application crash).

Statement

This flaw does not affect the version of samba shipped with Red Hat Enterprise Linux because there is no support for samba as Active Directory Domain Controller.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 6.5
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference