An OpenStack Horizon security update has been released for Ubuntu Linux 16.04 LTS, 18.04 LTS, and 20.04 LTS.

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Ubuntu Security Notice USN-4675-1
January 05, 2021

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

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

Summary:

OpenStack Horizon could be made to redirect to a malicious URL.

Software Description:
- horizon: Web interface for OpenStack cloud infrastructure

Details:

Pritam Singh discovered that OpenStack Horizon incorrectly validated
certain parameters. An attacker could possibly use this issue to cause
OpenStack Horizon to redirect to a malicious URL.

Update instructions:

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

Ubuntu 20.04 LTS:
openstack-dashboard 3:18.3.2-0ubuntu0.20.04.4

Ubuntu 18.04 LTS:
openstack-dashboard 3:13.0.3-0ubuntu2

Ubuntu 16.04 LTS:
openstack-dashboard 2:9.1.2-0ubuntu5.2

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

References:
  https://usn.ubuntu.com/4675-1
CVE-2020-29565

Package Information:
  https://launchpad.net/ubuntu/+source/horizon/3:18.3.2-0ubuntu0.20.04.4
  https://launchpad.net/ubuntu/+source/horizon/3:13.0.3-0ubuntu2
  https://launchpad.net/ubuntu/+source/horizon/2:9.1.2-0ubuntu5.2