ISC BIND 9 resolver.c Multiple DNS Cookie Packet Handling DoS

medium Nessus Plugin ID 90000


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


According to its self-reported version number, ISC BIND installed on the remote name server is affected by a denial of service vulnerability in file resolver.c when DNS cookies are enabled. An unauthenticated, remote attacker can exploit his, via a malformed packet with more than one cookie option, to cause an INSIST assertion failure and daemon exit.

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 9.10.3-P4 or later.

See Also

Plugin Details

Severity: Medium

ID: 90000

File Name: bind9_CVE-2016-2088.nasl

Version: 1.8

Type: remote

Family: DNS

Published: 3/17/2016

Updated: 11/20/2019

Configuration: Enable paranoid mode

Risk Information


Risk Factor: Medium

Score: 4.4


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

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

CVSS Score Source: CVE-2016-2088


Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/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: Settings/ParanoidReport, bind/version

Exploit Ease: No known exploits are available

Patch Publication Date: 3/9/2016

Vulnerability Publication Date: 3/9/2016

Reference Information

CVE: CVE-2016-2088