dnsmasq < 2.78 Multiple Remote Vulnerabilities

Critical Nessus Plugin ID 103647

Synopsis

The remote DNS / DHCP service is affected by multiple vulnerabilities.

Description

The version of dnsmasq installed on the remote host is prior to 2.78, and thus, is affected by the following vulnerabilities :

 - Denial of service related to handling DNS queries exceeding 512 bytes. (CVE-2017-13704)

 - Heap overflow related to handling DNS requests. (CVE-2017-14491)

 - Heap overflow related to IPv6 router advertisement handling.
 (CVE-2017-14492)

 - Stack overflow related to DHCPv6 request handling.
 (CVE-2017-14493)

 - Memory disclosure related to DHCPv6 packet handling.
 (CVE-2017-14494)

 - Denial of service related to handling DNS queries.
 (CVE-2017-14495)

 - Denial of service related to handling DNS queries.
 (CVE-2017-14496)

Solution

Upgrade to dnsmasq 2.78 or later.

See Also

http://www.thekelleys.org.uk/dnsmasq/CHANGELOG

http://www.nessus.org/u?1684fac7

http://www.nessus.org/u?2aa30bbb

http://www.nessus.org/u?4e408fdc

http://www.nessus.org/u?e3cd1c58

http://www.nessus.org/u?d610ee71

http://www.nessus.org/u?90a10783

http://www.nessus.org/u?32875869

http://www.nessus.org/u?dfdf89ab

http://www.nessus.org/u?8fac9ecd

http://www.nessus.org/u?460d9edd

http://www.nessus.org/u?e88e5476

http://www.nessus.org/u?1e246b99

http://www.nessus.org/u?dcbc583d

http://www.nessus.org/u?edfa62f7

http://www.nessus.org/u?8916059f

http://www.nessus.org/u?c7493663

http://www.nessus.org/u?c356dcf1

http://www.nessus.org/u?9bfb7dbc

Plugin Details

Severity: Critical

ID: 103647

File Name: dnsmasq_2_78.nasl

Version: $Revision: 1.3 $

Type: remote

Family: DNS

Published: 2017/10/03

Modified: 2017/10/06

Dependencies: 72779

Risk Information

Risk Factor: Critical

CVSSv2

Base Score: 10

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

CVSSv3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: cpe:/a:thekelleys:dnsmasq

Required KB Items: dns_server/version, Settings/ParanoidReport

Patch Publication Date: 2017/09/02

Vulnerability Publication Date: 2017/09/02

Reference Information

CVE: CVE-2017-13704, CVE-2017-14491, CVE-2017-14492, CVE-2017-14493, CVE-2017-14494, CVE-2017-14495, CVE-2017-14496

IAVA: 2017-A-0284