ISC BIND Denial of Service

high Nessus Plugin ID 136808

Synopsis

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

Description

A denial of service (DoS) vulnerability exists in ISC BIND versions 9.11.18 / 9.11.18-S1 / 9.12.4-P2 / 9.13 / 9.14.11 / 9.15 / 9.16.2 / 9.17 / 9.17.1 and earlier. An unauthenticated, remote attacker can exploit this issue, via a specially-crafted message, to cause the service to stop responding.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to the patched release most closely related to your current version of BIND.

See Also

https://kb.isc.org/docs/cve-2020-8617

Plugin Details

Severity: High

ID: 136808

File Name: bind9_9172.nasl

Version: 1.6

Type: remote

Family: DNS

Published: 5/22/2020

Updated: 5/13/2022

Risk Information

CVSS Score Source: CVE-2020-8617

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

Temporal Vector: E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:isc:bind

Required KB Items: bind/version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/19/2020

Vulnerability Publication Date: 5/19/2020

Reference Information

CVE: CVE-2020-8617

IAVA: 2020-A-0217-S