Debian DSA-4844-1 : dnsmasq - security update

high Nessus Plugin ID 146242

Synopsis

The remote Debian host is missing a security-related update.

Description

Moshe Kol and Shlomi Oberman of JSOF discovered several vulnerabilities in dnsmasq, a small caching DNS proxy and DHCP/TFTP server. They could result in denial of service, cache poisoning or the execution of arbitrary code.

Solution

Upgrade the dnsmasq packages.

For the stable distribution (buster), these problems have been fixed in version 2.80-1+deb10u1.

See Also

https://security-tracker.debian.org/tracker/source-package/dnsmasq

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

https://www.debian.org/security/2021/dsa-4844

Plugin Details

Severity: High

ID: 146242

File Name: debian_DSA-4844.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2/5/2021

Updated: 2/9/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*, p-cpe:2.3:a:debian:debian_linux:dnsmasq:*:*:*:*:*:*:*

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/2/2021

Vulnerability Publication Date: 1/20/2021

Reference Information

CVE: CVE-2020-25684, CVE-2020-25685, CVE-2020-25686, CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25687

DSA: 4844