CVE Database›Document archive›CVE-2019-12436

CVE-2019-12436

samba: NULL pointer dereference in Samba LDAP server leading to crash and Dos

Loading…

Severity

Moderate

Red Hat Product Security

6.5

CVSS 3.0

Review impact separately from score.

Published · June 19, 2019

Updated · January 8, 2026

Description

Samba 4.10.x before 4.10.5 has a NULL pointer dereference, leading to an AD DC LDAP server Denial of Service. This is related to an attacker using the paged search control. The attacker must have directory read access in order to attempt an exploit.

Statement

This issue did not affect the version of samba as shipped with 'Red Hat Gluster Storage 3' as they did not include support for 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

Return to the default configuration by running 'samba' with -M standard, however this may consume more memory.

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