ISC BIND 9 Multiple DoS

Medium Nessus Plugin ID 89998

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/article/AA-01352/

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

Plugin Details

Severity: Medium

ID: 89998

File Name: bind9_CVE-2016-1285.nasl

Version: 1.8

Type: remote

Family: DNS

Published: 2016/03/17

Modified: 2018/05/21

Dependencies: 10028

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 4.3

Temporal Score: 3.6

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND

Vulnerability Information

CPE: cpe:/a:isc:bind

Required KB Items: bind/version, Settings/ParanoidReport

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2016/03/09

Vulnerability Publication Date: 2016/03/09

Reference Information

CVE: CVE-2016-1285, CVE-2016-2088