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


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.


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

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


Risk Factor: Low

Score: 3.6


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


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