A fwupd security update has been released for Ubuntu Linux 20.04 LTS, 19.10, 18.04 LTS, and 16.04 LTS.

USN-4395-1: fwupd vulnerability

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Ubuntu Security Notice USN-4395-1
June 15, 2020

fwupd vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 19.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

fwupd could be made to install an unsigned firmware.

Software Description:
- fwupd: Firmware update daemon

Details:

Justin Steven discovered that fwupd incorrectly handled certain signature
verification. An attacker could possibly use this issue to install an unsigned
firmware.

Update instructions:

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

Ubuntu 20.04 LTS:
fwupd 1.3.9-4ubuntu0.1
libfwupd2 1.3.9-4ubuntu0.1

Ubuntu 19.10:
fwupd 1.2.10-1ubuntu4.1
libfwupd2 1.2.10-1ubuntu4.1

Ubuntu 18.04 LTS:
fwupd 1.2.10-1ubuntu2~ubuntu18.04.5
libfwupd2 1.2.10-1ubuntu2~ubuntu18.04.5

Ubuntu 16.04 LTS:
fwupd 0.8.3-0ubuntu5.1
libfwupd1 0.8.3-0ubuntu5.1

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

References:
  https://usn.ubuntu.com/4395-1
CVE-2020-10759

Package Information:
  https://launchpad.net/ubuntu/+source/fwupd/1.3.9-4ubuntu0.1
  https://launchpad.net/ubuntu/+source/fwupd/1.2.10-1ubuntu4.1
  https://launchpad.net/ubuntu/+source/fwupd/1.2.10-1ubuntu2~ubuntu18.04.5
  https://launchpad.net/ubuntu/+source/fwupd/0.8.3-0ubuntu5.1