USN-4377-1: ca-certificates update

1 June 2020

An expired certificate was removed from ca-certificates.

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Releases

Packages

Details

The ca-certificates package contained an expired CA certificate that caused
connectivity issues. This update removes the "AddTrust External Root" CA.

In addition, on Ubuntu 16.04 LTS and Ubuntu 18.04 LTS, this update
refreshes the included certificates to those contained in the 20190110
package.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 20.04
Ubuntu 19.10
Ubuntu 18.04
Ubuntu 16.04

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