- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 202101-17
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                           https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: Normal
    Title: Dnsmasq: Multiple vulnerabilities
     Date: January 22, 2021
     Bugs: #766126
       ID: 202101-17

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
=======
Multiple vulnerabilities have been found in Dnsmasq, the worst of which
may allow remote attackers to execute arbitrary code.

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

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-dns/dnsmasq               < 2.83                     >= 2.83

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"

References
=========
[ 1 ] CVE-2020-25681
      https://nvd.nist.gov/vuln/detail/CVE-2020-25681
[ 2 ] CVE-2020-25682
      https://nvd.nist.gov/vuln/detail/CVE-2020-25682
[ 3 ] CVE-2020-25683
      https://nvd.nist.gov/vuln/detail/CVE-2020-25683
[ 4 ] CVE-2020-25684
      https://nvd.nist.gov/vuln/detail/CVE-2020-25684
[ 5 ] CVE-2020-25685
      https://nvd.nist.gov/vuln/detail/CVE-2020-25685
[ 6 ] CVE-2020-25686
      https://nvd.nist.gov/vuln/detail/CVE-2020-25686
[ 7 ] CVE-2020-25687
      https://nvd.nist.gov/vuln/detail/CVE-2020-25687

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

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

Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
======
Copyright 2021 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5/

Gentoo: GLSA-202101-17: Dnsmasq: Multiple vulnerabilities

Multiple vulnerabilities have been found in Dnsmasq, the worst of which may allow remote attackers to execute arbitrary code.

Summary

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

Resolution

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

References


[ 1 ] CVE-2020-25681 https://nvd.nist.gov/vuln/detail/CVE-2020-25681 [ 2 ] CVE-2020-25682 https://nvd.nist.gov/vuln/detail/CVE-2020-25682 [ 3 ] CVE-2020-25683 https://nvd.nist.gov/vuln/detail/CVE-2020-25683 [ 4 ] CVE-2020-25684 https://nvd.nist.gov/vuln/detail/CVE-2020-25684 [ 5 ] CVE-2020-25685 https://nvd.nist.gov/vuln/detail/CVE-2020-25685 [ 6 ] CVE-2020-25686 https://nvd.nist.gov/vuln/detail/CVE-2020-25686 [ 7 ] CVE-2020-25687 https://nvd.nist.gov/vuln/detail/CVE-2020-25687

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202101-17

Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity
Severity: Normal
Title: Dnsmasq: Multiple vulnerabilities
Date: January 22, 2021
Bugs: #766126
ID: 202101-17

Synopsis

Multiple vulnerabilities have been found in Dnsmasq, the worst of which may allow remote attackers to execute arbitrary code.

Background

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

Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-dns/dnsmasq < 2.83 >= 2.83

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.

Related News

The End of the Road for Linux 6.11: A Call to Upgrade to Kernel 6.12
3 - 5 min read
The Linux kernel community recently issued an EOL announcement regarding the 6.11 kernel series, urging sysadmins to upgrade quickly to 6.12 . This
A Linux Admin
3 - 6 min read
As 2025 approaches, we Linux admins are facing new and often unseen cloud-native security obstacles. While skilled at mitigating known risks,
Leveraging Insights from the Linux Foundation
3 - 5 min read
The Linux Foundation's recent Census III report provides critical insights for Linux administrators, information security professionals, and anyone
Chrome 131 Released: Emergency Security Update Fixes Over a Dozen Significant Vulns
3 - 6 min read
Google recently unveiled a critical security update to their popular web browser, Google Chrome, addressing over a dozen significant security
From Wayland Fixes to Security Boosts: Examining Qt 6.8.1
3 - 6 min read
The recent Qt 6.8.1 release brings significant updates and improvements, strengthening its reputation as a secure and reliable application
Exploring Arch Linux 2024.12.01: Security Implications & Notable Enhancements for Linux Admins
3 - 6 min read
The Arch Linux 2024.12.01 ISO release marks an impressive milestone, offering cutting-edge updates that enhance functionality, streamline
Deck the Halls with Enhanced Security: Linux Kernel 6.13
3 - 5 min read
As Linux admins and infosec professionals prepare for the holiday season, there's much cause for celebration this year! Linus Torvalds recently made
Lessons from Bootkitty: Securing Linux Systems Against UEFI Intrusions
3 - 5 min read
New Linux security threats mark critical junctures that challenge existing policies and test security protocols to their limit. One such milestone

Get the Latest News & Insights

Sign up to get the latest security news affecting Linux and open source delivered straight to your inbox.

© 2024 Guardian Digital, Inc All Rights Reserved