ISC BIND 9.10.5-S1 <= 9.11.6-S1 EDNS Client Subnet RRSIG Denial of Service

Medium Nessus Plugin ID 125738

New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it's different from CVSS.

VPR Score: 3.6


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


The version of ISC BIND Supported Preview Edition running on the remote host is version 9.10.5-S1 through 9.11.6-S1. It is, therefore, affected by an error related to handling RRSIG data that allows an attacker to crash the application if the EDNS Client Subnet (ECS) feature is enabled.


Upgrade to ISC BIND version 9.11.7-S1 or later.

See Also

Plugin Details

Severity: Medium

ID: 125738

File Name: bind9_9117.nasl

Version: 1.4

Type: remote

Family: DNS

Published: 2019/06/06

Updated: 2019/11/04

Dependencies: 10028

Configuration: Enable paranoid mode

Risk Information

Risk Factor: Medium

VPR Score: 3.6

CVSS Score Source: CVE-2019-6469

CVSS v2.0

Base Score: 4.3

Temporal Score: 3.2

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

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

CVSS v3.0

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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: 2019/05/29

Vulnerability Publication Date: 2019/05/29

Reference Information

CVE: CVE-2019-6469

BID: 108517