Vulnerability Details : CVE-2018-16852
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.
Vulnerability category: Denial of service
Products affected by CVE-2018-16852
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-16852
0.72%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 80 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-16852
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:N/A:P |
6.8
|
2.9
|
NIST | |
4.4
|
MEDIUM | CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H |
0.7
|
3.6
|
NIST | |
6.5
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
Red Hat, Inc. |
CWE ids for CVE-2018-16852
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2018-16852
-
https://security.gentoo.org/glsa/202003-52
Samba: Multiple vulnerabilities (GLSA 202003-52) — Gentoo security
-
https://security.netapp.com/advisory/ntap-20181127-0001/
November 2018 Samba Vulnerabilities in NetApp StorageGRID Products | NetApp Product SecurityThird Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16852
1646386 – (CVE-2018-16852) CVE-2018-16852 samba: NULL pointer de-reference in Samba AD DC DNS management serverIssue Tracking;Third Party Advisory
-
http://www.securityfocus.com/bid/106024
Samba Security Bypass and Denial of Service VulnerabilitiesThird Party Advisory;VDB Entry
-
https://www.samba.org/samba/security/CVE-2018-16852.html
Samba - Security Announcement ArchivePatch;Vendor Advisory
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