ISC BIND Assertion Failure Vulnerability (DoS)

Low Nessus Plugin ID 122238


The remote name server is affected by an assertion failure vulnerability.


According to its self-reported version, the instance of ISC BIND 9 running on the remote name server is 9.12.0 or 9.12.1. It is, therefore, affected by an assertion failure vulnerability which exists in the zone database reference counting mechanism due to attempting several transfers of a slave zone in quick succession.

An unauthenticated, remote attacker can exploit this to cause the named process to exit after failing the assertion test.


Upgrade to ISC BIND version 9.12.1-P1 or later.

See Also

Plugin Details

Severity: Low

ID: 122238

File Name: bind9_CVE-2018-5736.nasl

Version: 1.2

Type: remote

Family: DNS

Published: 2019/02/15

Updated: 2019/10/31

Dependencies: 10028

Configuration: Enable paranoid mode

Risk Information

Risk Factor: Low

CVSS Score Source: CVE-2018-5736

CVSS v2.0

Base Score: 3.5

Temporal Score: 2.6

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: cpe:/a:isc:bind

Required KB Items: bind/version, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 2018/05/18

Vulnerability Publication Date: 2018/05/18

Reference Information

CVE: CVE-2018-5736

BID: 104386