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gentooGentoo FoundationGLSA-202101-17
HistoryJan 22, 2021 - 12:00 a.m.

Dnsmasq: Multiple vulnerabilities

2021-01-2200:00:00
Gentoo Foundation
security.gentoo.org
31
dnsmasq
vulnerabilities
lightweight
dns
dhcp
arbitrary code
cache poisoning
dos
attack

CVSS2

8.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

COMPLETE

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

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.159

Percentile

96.0%

JSON

Background

Dnsmasq is a lightweight and easily-configurable DNS forwarder and DHCP server.

Description

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.

Resolution

All Dnsmasq users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.83"
OSVersionArchitecturePackageVersionFilename
Gentooanyallnet-dns/dnsmasq< 2.83UNKNOWN

Related

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openvas 33
debian 3
redhat 12
altlinux 1
fedora 2
oraclelinux 4
almalinux 1
photon 6
ics 1
cisco 1
suse 2
threatpost 1
osv 10
slackware 1
malwarebytes 1
ubuntu 2
freebsd 1
openwrt 1
cert 1
mageia 1
archlinux 1
f5 2
rosalinux 1
debiancve 4
ubuntucve 5
redhatcve 6
cvelist 6
alpinelinux 7
thn 1
centos 1
cve 5
nvd 4
arista 1
prion 5
ibm 1
amazon 1
cbl_mariner 1
veracode 2
nessus
nessus
RHEL 8 : dnsmasq (RHSA-2021:0152)
2021-01-19 00:00:00
RHEL 8 : dnsmasq (RHSA-2021:0150)
2021-01-19 00:00:00
SUSE SLES12 Security Update : dnsmasq (SUSE-SU-2021:0166-1)
2021-01-20 00:00:00
openvas
openvas
Huawei EulerOS: Security Advisory for dnsmasq (EulerOS-SA-2021-1263)
2021-02-05 00:00:00
Huawei EulerOS: Security Advisory for dnsmasq (EulerOS-SA-2021-1389)
2021-03-05 00:00:00
openSUSE: Security Advisory for dnsmasq (openSUSE-SU-2021:0129-1)
2021-04-16 00:00:00
debian
debian
[SECURITY] [DSA 4844-1] dnsmasq security update
2021-02-04 07:37:12
[SECURITY] [DSA 4844-1] dnsmasq security update
2021-02-04 07:37:12
[SECURITY] [DLA 2604-1] dnsmasq security update
2021-03-22 18:43:44
redhat
redhat
(RHSA-2021:0151) Important: dnsmasq security update
2021-01-19 12:36:50
(RHSA-2021:0150) Important: dnsmasq security update
2021-01-19 12:37:10
(RHSA-2021:0152) Important: dnsmasq security update
2021-01-19 12:36:51
altlinux
altlinux
Security fix for the ALT Linux 10 package dnsmasq version 2.83-alt1
2021-01-22 00:00:00
fedora
fedora
[SECURITY] Fedora 33 Update: dnsmasq-2.83-1.fc33
2021-01-21 01:47:44
[SECURITY] Fedora 32 Update: dnsmasq-2.84-1.fc32
2021-02-20 01:34:26
oraclelinux
oraclelinux
dnsmasq security update
2021-01-20 00:00:00
dnsmasq security update
2021-01-19 00:00:00
dnsmasq security update
2023-11-06 00:00:00
almalinux
almalinux
Important: dnsmasq security update
2021-01-19 12:37:10
photon
photon
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2021-2.0-0312
2021-01-22 00:00:00
Important Photon OS Security Update - PHSA-2021-0312
2021-01-22 00:00:00
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2021-1.0-0356
2021-01-22 00:00:00
ics
ics
dnsmasq by Simon Kelley (Update A)
2021-03-09 12:00:00
cisco
cisco
Multiple Vulnerabilities in dnsmasq DNS Forwarder Affecting Cisco Products: January 2021
2021-01-19 12:15:00
suse
suse
Security update for dnsmasq (important)
2021-01-20 00:00:00
Security update for dnsmasq (important)
2021-01-20 00:00:00
threatpost
threatpost
DNSpooq Flaws Allow DNS Hijacking of Millions of Devices
2021-01-19 21:25:10
osv
osv
dnsmasq - security update
2021-02-02 00:00:00
dnsmasq regression
2021-02-24 13:43:44
dnsmasq - security update
2021-03-22 00:00:00
slackware
slackware
[slackware-security] dnsmasq
2021-02-09 20:59:31
malwarebytes
malwarebytes
DNSpooq bugs haunt dnsmasq
2021-01-21 15:56:12
ubuntu
ubuntu
Dnsmasq regression
2021-02-24 00:00:00
Dnsmasq vulnerabilities
2021-01-19 00:00:00
freebsd
freebsd
dnsmasq -- DNS cache poisoning, and DNSSEC buffer overflow, vulnerabilities
2020-09-16 00:00:00
openwrt
openwrt
Security Advisory 2021-01-19-1 - dnsmasq multiple vulnerabilities (CVE-2020-25681, CVE-2020-25682, CVE-2020-25683, CVE-2020-25684, CVE-2020-25685, CVE-2020-25686, CVE-2020-25687)
2021-01-19 00:00:00
cert
cert
Dnsmasq is vulnerable to memory corruption and cache poisoning
2021-01-19 00:00:00
mageia
mageia
Updated dnsmasq packages fix security vulnerability
2021-01-29 22:05:33
archlinux
archlinux
[ASA-202101-38] dnsmasq: multiple issues
2021-01-20 00:00:00
f5
f5
K02931614 : Multiple dnsmasq vulnerabilities
2021-03-30 00:00:00
K98221124 : Multiple dnsmasq vulnerabilities CVE-2020-25684, CVE-2020-25685, and CVE-2020-25686
2021-03-30 00:00:00
rosalinux
rosalinux
Advisory ROSA-SA-2021-1823
2021-07-02 16:38:26
debiancve
debiancve
CVE-2020-25684
2021-01-20 16:15:14
CVE-2020-25686
2021-01-20 17:15:13
CVE-2020-25685
2021-01-20 16:15:14
ubuntucve
ubuntucve
CVE-2020-25684
2021-01-19 00:00:00
CVE-2020-25686
2021-01-19 00:00:00
CVE-2020-25685
2021-01-19 00:00:00
redhatcve
redhatcve
CVE-2020-25684
2021-01-19 14:57:23
CVE-2020-25686
2021-01-19 12:18:42
CVE-2020-25685
2021-01-19 12:18:11
cvelist
cvelist
CVE-2020-25684
2021-01-20 15:22:21
CVE-2020-25686
2021-01-20 16:47:17
CVE-2020-25685
2021-01-20 00:00:00
alpinelinux
alpinelinux
CVE-2020-25684
2021-01-20 16:15:14
CVE-2020-25685
2021-01-20 16:15:14
CVE-2020-25686
2021-01-20 17:15:13
thn
thn
A Set of Severe Flaws Affect Popular DNSMasq DNS Forwarder
2021-01-19 12:01:00
centos
centos
dnsmasq security update
2021-01-25 14:08:58
cve
cve
CVE-2020-25684
2021-01-20 16:15:14
CVE-2020-25686
2021-01-20 17:15:13
CVE-2020-25685
2021-01-20 16:15:14
nvd
nvd
CVE-2020-25684
2021-01-20 16:15:14
CVE-2020-25685
2021-01-20 16:15:14
CVE-2020-25686
2021-01-20 17:15:13
arista
arista
Security Advisory 0061
2021-01-19 00:00:00
prion
prion
Design/Logic Flaw
2021-01-20 16:15:00
Design/Logic Flaw
2021-01-20 16:15:00
Design/Logic Flaw
2021-01-20 17:15:00
ibm
ibm
Security Bulletin: IBM Security Privileged Identity Manager is affected by security vulnerabilities (CVE-2020-25684, CVE-2020-25685, CVE-2020-25686)
2021-08-04 17:40:31
amazon
amazon
Medium: dnsmasq
2021-01-25 23:09:00
cbl_mariner
cbl_mariner
CVE-2020-25687 affecting package dnsmasq 2.79-11
2021-05-06 23:56:42
veracode
veracode
Buffer Overflow
2021-01-20 16:41:21
Arbitrary Code Execution
2021-01-20 16:41:21

CVSS2

8.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

COMPLETE

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

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.159

Percentile

96.0%

JSON
Related for GLSA-202101-17
nessus60openvas33debian3redhat12altlinux1fedora2oraclelinux4almalinux1photon6ics1cisco1suse2threatpost1osv10slackware1malwarebytes1ubuntu2freebsd1openwrt1cert1mageia1archlinux1f52rosalinux1debiancve4ubuntucve5redhatcve6cvelist6alpinelinux7thn1centos1cve5nvd4arista1prion5ibm1amazon1cbl_mariner1veracode2