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Ubuntu 20.10: USN-4698-1 Moderate: Dnsmasq DoS And Cache Poisoning

ubuntu
Calendar Grey January 19, 2021
Dist Ubuntu Esm H88
A critical security advisory highlights vulnerabilities in Ubuntu's dnsmasq service, urging immediate upgrades and vigilant monitoring to prevent potential attacks
Several security issues were fixed in Dnsmasq.

Summary

Topics%20covered

Topics Covered

security advisory moderate denial of service security issue DoS Ubuntu cache poisoning ubuntu dnsmasq

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10: dnsmasq 2.82-1ubuntu1.1 dnsmasq-base 2.82-1ubuntu1.1 dnsmasq-utils 2.82-1ubuntu1.1 Ubuntu 20.04 LTS: dnsmasq 2.80-1.1ubuntu1.2 dnsmasq-base 2.80-1.1ubuntu1.2 dnsmasq-utils 2.80-1.1ubuntu1.2 Ubuntu 18.04 LTS: dnsmasq 2.79-1ubuntu0.2 dnsmasq-base 2.79-1ubuntu0.2 dnsmasq-utils 2.79-1ubuntu0.2 Ubuntu 16.04 LTS: dnsmasq 2.75-1ubuntu0.16.04.7 dnsmasq-base 2.75-1ubuntu0.16.04.7 dnsmasq-utils 2.75-1ubuntu0.16.04.7 After a standard system update you need to reboot your computer to make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-4698-1

CVE-2019-14834, CVE-2020-25681, CVE-2020-25682, CVE-2020-25683,

CVE-2020-25684, CVE-2020-25685, CVE-2020-25686, CVE-2020-25687

January 19, 2021

Topics%20covered

Topics Covered

security advisory moderate denial of service security issue DoS Ubuntu cache poisoning ubuntu dnsmasq

Package Information

https://launchpad.net/ubuntu/+source/dnsmasq/2.82-1ubuntu1.1 https://launchpad.net/ubuntu/+source/dnsmasq/2.80-1.1ubuntu1.2 https://launchpad.net/ubuntu/+source/dnsmasq/2.79-1ubuntu0.2 https://launchpad.net/ubuntu/+source/dnsmasq/2.75-1ubuntu0.16.04.7

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