ISC BIND 9 < 9.9.9-P6 / 9.9.9-S8 / 9.10.4-P6 / 9.11.0-P3 DNS64 and RPZ DoS

medium Nessus Plugin ID 97227
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

According to its self-reported version number, the instance of ISC BIND 9 running on the remote name server is 9.8.8 or 9.9.x prior to 9.9.9-P6 or 9.9.9-S8, 9.10.x prior to 9.10.4-P6, or 9.11.x prior to 9.11.0-P3. It is, therefore, affected by a denial of service vulnerability in the query_find() function in query.c that is triggered when using DNS64 and RPZ simultaneously for rewriting query responses. An unauthenticated, remote attacker can exploit this to cause an INSIST assertion failure or a NULL pointer read, resulting in a termination of the service.

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 ISC BIND version 9.9.9-P6 / 9.9.9-S8 / 9.10.4-P6 / 9.11.0-P3 or later. Alternatively, remove either DNS64 or RPZ from the configuration.

See Also

https://kb.isc.org/article/AA-01453

Plugin Details

Severity: Medium

ID: 97227

File Name: bind9_CVE-2017-3135.nasl

Version: 1.7

Type: remote

Family: DNS

Published: 2/17/2017

Updated: 11/13/2019

Dependencies: bind_version.nasl

Configuration: Enable paranoid mode

Risk Information

CVSS Score Source: CVE-2017-3135

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

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

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

Vector: CVSS:3.0/AV:N/AC:H/PR:N/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: 2/8/2017

Vulnerability Publication Date: 2/8/2017

Reference Information

CVE: CVE-2017-3135