Debian DSA-3989-1 : dnsmasq - security update

critical Nessus Plugin ID 103608
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-related 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.

Solution

Upgrade the dnsmasq packages.

For the oldstable distribution (jessie), these problems have been fixed in version 2.72-3+deb8u2.

For the stable distribution (stretch), these problems have been fixed in version 2.76-5+deb9u1.

See Also

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

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

https://www.debian.org/security/2017/dsa-3989

Plugin Details

Severity: Critical

ID: 103608

File Name: debian_DSA-3989.nasl

Version: 3.12

Type: local

Agent: unix

Published: 10/3/2017

Updated: 1/4/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

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, cpe:/o:debian:debian_linux:8.0, cpe:/o:debian:debian_linux:9.0

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: 10/2/2017

Vulnerability Publication Date: 10/3/2017

Exploitable With

Core Impact

Reference Information

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

DSA: 3989

IAVA: 2017-A-0284-S