CVE-2018-16852

Severity Score

4.4

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Samba from version 4.9.0 and before version 4.9.3 is vulnerable to a NULL pointer de-reference. During the processing of an DNS zone in the DNS management DCE/RPC server, the internal DNS server or the Samba DLZ plugin for BIND9, if the DSPROPERTY_ZONE_MASTER_SERVERS property or DSPROPERTY_ZONE_SCAVENGING_SERVERS property is set, the server will follow a NULL pointer and terminate. There is no further vulnerability associated with this issue, merely a denial of service.

Samba, desde la versión 4.9.0 antes de la versión 4.9.3, es vulnerable a una desreferencia de puntero NULL. Durante el procesamiento de una zona DNS en el servidor DCE/RPC de gestión DNS, el servidor DNS interno del plugin Samba DLZ para BIND9, si las propiedades DSPROPERTY_ZONE_MASTER_SERVERS o DSPROPERTY_ZONE_SCAVENGING_SERVERS están establecidas, el servidor seguirá un puntero NULL y se terminará. No hay más vulnerabilidades asociadas a este problema, simplemente una denegación de servicio (DoS).

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-09-11 CVE Reserved
2018-11-28 CVE Published
2024-04-20 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (5)

URL	Tag	Source
http://www.securityfocus.com/bid/106024	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16852	Issue Tracking
https://security.netapp.com/advisory/ntap-20181127-0001	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://www.samba.org/samba/security/CVE-2018-16852.html	2019-10-09

URL	Date	SRC
https://security.gentoo.org/glsa/202003-52	2019-10-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Samba Search vendor "Samba"		Samba Search vendor "Samba" for product "Samba"				>= 4.9.0 < 4.9.3 Search vendor "Samba" for product "Samba" and version " >= 4.9.0 < 4.9.3"		-		Affected