ISC BIND 9.16.x < 9.16.4 DoS

Medium Nessus Plugin ID 137838

Synopsis

The remote name server is affected by a denial of service vulnerability.

Description

The version of ISC BIND installed on the remote host is prior to 9.16.4. It is, therefore, affected by a denial of service (DoS) vulnerability in its zone transfer functionality due to insufficient validation of user-supplied input. An authenticated, remote attacker can exploit this issue, to cause a DoS condition on the service.

Solution

Upgrade to ISC BIND version 9.16.4 or later.

See Also

https://kb.isc.org/docs/cve-2020-8618

https://www.isc.org/download/

https://www.isc.org/pgpkey/

https://www.isc.org/reportbug/

Plugin Details

Severity: Medium

ID: 137838

File Name: bind9_9164.nasl

Version: 1.2

Type: remote

Family: DNS

Published: 2020/06/26

Updated: 2020/07/03

Dependencies: 10028

Configuration: Enable paranoid mode

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2020-8618

CVSS v2.0

Base Score: 4

Temporal Score: 3

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

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

CVSS v3.0

Base Score: 4.9

Temporal Score: 4.3

Vector: CVSS:3.0/AV:N/AC:L/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

CPE: cpe:/a:isc:bind

Required KB Items: bind/version, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/06/17

Vulnerability Publication Date: 2020/06/17

Reference Information

CVE: CVE-2020-8618

IAVA: 2020-A-0276