ISC BIND Crafted ANY Request Response Multiple RRsets DoS

medium Nessus Plugin ID 17840


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


The version of BIND installed on the remote host suggests that it suffers from a denial of service vulnerability that could be triggered by sending a large volume of recursive queries that return multiple RRsets in the answer section, triggering assertion checks. To be vulnerable you need to have enabled DNSSEC validation in named.conf by specifying trusted-keys.

Note that Nessus obtained the version by sending a special DNS request for the text 'version.bind' in the domain 'chaos', the value of which can be and sometimes is tweaked by DNS administrators.


Upgrade to BIND 9.2.8, 9.3.4, 9.4.0rc1, or 9.5.0a2.

See Also

Plugin Details

Severity: Medium

ID: 17840

File Name: bind9_dos4.nasl

Version: 1.6

Type: remote

Family: DNS

Published: 1/19/2012

Updated: 6/27/2018

Configuration: Enable paranoid mode

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

Vulnerability Information

CPE: cpe:/a:isc:bind

Required KB Items: Settings/ParanoidReport, bind/version

Exploit Ease: No known exploits are available

Patch Publication Date: 1/25/2007

Vulnerability Publication Date: 1/25/2007

Reference Information

CVE: CVE-2007-0494

BID: 22231