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Ubuntu 21.04, 20.04, 18.04: USN-5089-1 Critical CA Certificate Issue

ubuntu
Calendar Grey September 23, 2021
Dist Ubuntu Esm H88
Essential patch for purging obsolete CA certificates on Ubuntu distributions to guarantee consistent connectivity.
A certificate about to expire was removed from ca-certificates.

Summary

A certificate about to expire was removed from ca-certificates.

Software Description:

- ca-certificates: Common CA certificates

Details:

The ca-certificates package contained a CA certificate that will expire on

2021-09-30 and will cause connectivity issues. This update removes the

“DST Root CA X3” CA.

Topics%20covered

Topics Covered

security advisory Ubuntu ca-certificates certificate removal connectivity

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 21.04:
  ca-certificates                 20210119ubuntu0.21.04.1

Ubuntu 20.04 LTS:
  ca-certificates                 20210119~20.04.2

Ubuntu 18.04 LTS:
  ca-certificates                 20210119~18.04.2

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-5089-1

https://bugs.launchpad.net/ubuntu/+source/ca-certificates/+bug/1944481

Severity
critical
Lowest
Low
Medium
High
Critical

September 23, 2021

Topics%20covered

Topics Covered

security advisory Ubuntu ca-certificates certificate removal connectivity

Package Information

https://launchpad.net/ubuntu/+source/ca-certificates/20210119ubuntu0.21.04.1
https://launchpad.net/ubuntu/+source/ca-certificates/20210119~20.04.2
https://launchpad.net/ubuntu/+source/ca-certificates/20210119~18.04.2

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