ISC BIND Assertion Failure Vulnerability (DoS)

medium Nessus Plugin ID 122238

Synopsis

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

Description

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.

Solution

Upgrade to ISC BIND version 9.12.1-P1 or later.

See Also

https://kb.isc.org/docs/AA-01602

Plugin Details

Severity: Medium

ID: 122238

File Name: bind9_CVE-2018-5736.nasl

Version: 1.2

Type: remote

Family: DNS

Published: 2/15/2019

Updated: 10/31/2019

Configuration: Enable paranoid mode

Risk Information

CVSS Score Source: CVE-2018-5736

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 3.5

Temporal Score: 2.6

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

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

CVSS v3

Risk Factor: Medium

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: 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: 5/18/2018

Vulnerability Publication Date: 5/18/2018

Reference Information

CVE: CVE-2018-5736

BID: 104386