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Echo: samba: security update to 2:4.9.2+dfsg-2

medium Tenable Self-Hosted Container Security Plugin ID 458259

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2018-16852)

Solution

Update the samba library and its related packages to version 2:4.9.2+dfsg-2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2018-16852

Plugin Details

Severity: Medium

ID: 458259

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: Low

Base Score: 3.5

Temporal Score: 2.6

Vector: CVSS2#AV:N/AC:M/Au:S/C:N/I:N/A:P

CVSS Score Source: CVE-2018-16852

CVSS v3

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.9

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/2/2026

Vulnerability Publication Date: 11/27/2018

Reference Information

CVE: CVE-2018-16852

IAVA: 2018-A-0384-S