Debian DLA-1124-1 : dnsmasq security update

critical Nessus Plugin ID 103709
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Debian host is missing a security update.

Description

Felix Wilhelm, Fermin J. Serna, Gabriel Campana, Kevin Hamacher, Ron Bowes and Gynvael Coldwind of the Google Security Team discovered several vulnerabilities in dnsmasq, a small caching DNS proxy and DHCP/TFTP server, which may result in denial of service, information leak or the execution of arbitrary code.

For Debian 7 'Wheezy', these problems have been fixed in version 2.62-3+deb7u4.

We recommend that you upgrade your dnsmasq packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2017/10/msg00004.html

https://packages.debian.org/source/wheezy/dnsmasq

Plugin Details

Severity: Critical

ID: 103709

File Name: debian_DLA-1124.nasl

Version: 3.13

Type: local

Agent: unix

Published: 10/9/2017

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:dnsmasq, p-cpe:/a:debian:debian_linux:dnsmasq-base, p-cpe:/a:debian:debian_linux:dnsmasq-utils, cpe:/o:debian:debian_linux:7.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/6/2017

Vulnerability Publication Date: 10/3/2017

Exploitable With

Core Impact

Reference Information

CVE: CVE-2017-14491, CVE-2017-14492, CVE-2017-14494

IAVA: 2017-A-0284-S