CVE-2018-16852

MEDIUM

Samba 4.9.0-4.9.3 - Denial of Service via DNS Zone Property Handling

Title source: llm

Description

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.

References (5)

Core 5

Core References

Patch, Vendor Advisory x_refsource_confirm

https://www.samba.org/samba/security/CVE-2018-16852.html

Issue Tracking, Third Party Advisory x_refsource_confirm

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16852

Third Party Advisory x_refsource_confirm

https://security.netapp.com/advisory/ntap-20181127-0001/

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/106024

Third Party Advisory vendor-advisory x_refsource_gentoo

https://security.gentoo.org/glsa/202003-52

Scores

CVSS v3 6.5

EPSS 0.0290

EPSS Percentile 86.5%

Attack Vector NETWORK

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

Details

CWE

CWE-476

Status published

Products (1)

samba/samba 4.9.0 - 4.9.3

Published Nov 28, 2018

Tracked Since Feb 18, 2026