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Ubuntu 20.04 LTS USN-4938-1 Critical: Unbound DoS Threat

ubuntu
Calendar Grey May 6, 2021
Dist Ubuntu Esm H88
Ensure your Ubuntu installations are up to date to address various vulnerabilities in Unbound, potentially allowing for remote code execution and service disruptions.
Several security issues were fixed in Unbound.

Summary

Topics%20covered

Topics Covered

security advisory denial of service critical issue critical software update remote code execution Ubuntu remote execution ubuntu unbound

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: libunbound8 1.9.4-2ubuntu1.2 unbound 1.9.4-2ubuntu1.2 Ubuntu 18.04 LTS: libunbound2 1.6.7-1ubuntu2.4 unbound 1.6.7-1ubuntu2.4 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-4938-1

CVE-2019-25031, CVE-2019-25032, CVE-2019-25033, CVE-2019-25034,

CVE-2019-25035, CVE-2019-25036, CVE-2019-25037, CVE-2019-25038,

CVE-2019-25039, CVE-2019-25040, CVE-2019-25041, CVE-2019-25042,

CVE-2020-28935

Severity
critical
Lowest
Low
Medium
High
Critical

May 06, 2021

Topics%20covered

Topics Covered

security advisory denial of service critical issue critical software update remote code execution Ubuntu remote execution ubuntu unbound

Package Information

https://launchpad.net/ubuntu/+source/unbound/1.9.4-2ubuntu1.2 https://launchpad.net/ubuntu/+source/unbound/1.6.7-1ubuntu2.4

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