GLSA-202101-17 : Dnsmasq: Multiple vulnerabilities

high Nessus Plugin ID 145282

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-202101-17 (Dnsmasq: Multiple vulnerabilities)

Multiple vulnerabilities have been discovered in Dnsmasq. Please review the references below for details.
Impact :

An attacker, by sending specially crafted DNS replies, could possibly execute arbitrary code with the privileges of the process, perform a cache poisoning attack or cause a Denial of Service condition.
Workaround :

There is no known workaround at this time.

Solution

All Dnsmasq users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-dns/dnsmasq-2.83'

See Also

https://security.gentoo.org/glsa/202101-17

Plugin Details

Severity: High

ID: 145282

File Name: gentoo_GLSA-202101-17.nasl

Version: 1.4

Type: local

Published: 1/25/2021

Updated: 2/1/2021

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

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

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

CVSS Score Source: CVE-2020-25682

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: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:dnsmasq, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 1/22/2021

Vulnerability Publication Date: 1/20/2021

Reference Information

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

GLSA: 202101-17