dnsmasq < 2.78 Multiple Remote Vulnerabilities

critical Nessus Plugin ID 103647
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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: 1.7

Type: remote

Family: DNS

Published: 10/3/2017

Updated: 5/8/2020

Dependencies: dns_version.nasl

Configuration: Enable paranoid mode

Risk Information

CVSS Score Source: CVE-2017-14493

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.2

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:F/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

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

Temporal Vector: E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:thekelleys:dnsmasq

Required KB Items: dns_server/version, Settings/ParanoidReport

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/2/2017

Vulnerability Publication Date: 9/2/2017

Exploitable With

Core Impact

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-S