CVE-2018-16852

LOW

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

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

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

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

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

Details

Source: MITRE

Published: 2018-11-28

Updated: 2019-02-04

Type: CWE-476

Risk Information

CVSS v2.0

Base Score: 3.5

Vector: AV:N/AC:M/Au:S/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 6.8

Severity: LOW

CVSS v3.0

Base Score: 4.4

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

Impact Score: 3.6

Exploitability Score: 0.7

Severity: MEDIUM