CVE-2018-16852

MediumCVSS 4.4/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 4.4/10CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

Vendor	Product	Versions
[UNKNOWN]	samba	4.9.3

References

http://www.securityfocus.com/bid/106024Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16852Issue Tracking, Third Party Advisory
https://security.gentoo.org/glsa/202003-52
https://security.netapp.com/advisory/ntap-20181127-0001/Third Party Advisory
https://www.samba.org/samba/security/CVE-2018-16852.htmlPatch, Vendor Advisory
http://www.securityfocus.com/bid/106024Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16852Issue Tracking, Third Party Advisory
https://security.gentoo.org/glsa/202003-52
https://security.netapp.com/advisory/ntap-20181127-0001/Third Party Advisory
https://www.samba.org/samba/security/CVE-2018-16852.htmlPatch, Vendor Advisory

Timeline

Published: Nov 28, 2018
Last modified: Jun 17, 2026
NVD status: Modified

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