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ISC BIND 9 Multiple DoS

medium Nessus Plugin ID 89998

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Synopsis

The remote name server is affected by multiple denial of service vulnerabilities.

Description

According to its self-reported version number, the instance of ISC BIND running on the remote name server is affected by multiple denial of service vulnerabilities :

 - A denial of service vulnerability exists in files sexpr.c and alist.c when handling control channel packets. An unauthenticated, remote attacker can exploit this, via crafted packets sent to the control channel (rndc) interface, to cause an assertion failure and daemon exit. (CVE-2016-1285)

 - A denial of service vulnerability exists in resolver.c when DNS cookies are enabled. An unauthenticated, remote attacker can exploit this, via a malformed cookie with more than one cookie option, to cause an INSIST assertion failure and daemon exit. (CVE-2016-2088)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to ISC BIND version 9.9.8-P4 / 9.9.8-S6 / 9.10.3-P4 or later.
Note that version 9.9.8-S6 is a preview version of BIND provided exclusively to ISC Support customers. Additionally, the fix for CVE-2016-2088 is only available in version 9.10.3-P4.

See Also

https://kb.isc.org/docs/aa-01352

https://kb.isc.org/article/AA-01362/

Plugin Details

Severity: Medium

ID: 89998

File Name: bind9_CVE-2016-1285.nasl

Version: 1.13

Type: remote

Family: DNS

Published: 3/17/2016

Updated: 11/20/2019

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

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

CVSS Score Source: CVE-2016-2088

CVSS v3

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-2016-1285, CVE-2016-2088