==========================================================================
Ubuntu Security Notice USN-6691-1
March 12, 2024

ovn vulnerability
==========================================================================

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

- Ubuntu 23.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

OVN could be made to disrupt traffic.

Software Description:
- ovn: system to support virtual network abstraction

Details:

It was discovered that OVN incorrectly enabled OVS Bidirectional Forwarding
Detection on logical ports. A remote attacker could possibly use this issue
to disrupt traffic.

Update instructions:

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

Ubuntu 23.10:
   ovn-central                     23.09.0-1ubuntu0.1
   ovn-common                      23.09.0-1ubuntu0.1
   ovn-host                        23.09.0-1ubuntu0.1
   ovn-ic                          23.09.0-1ubuntu0.1

Ubuntu 22.04 LTS:
   ovn-central                     22.03.3-0ubuntu0.22.04.2
   ovn-common                      22.03.3-0ubuntu0.22.04.2
   ovn-host                        22.03.3-0ubuntu0.22.04.2
   ovn-ic                          22.03.3-0ubuntu0.22.04.2

Ubuntu 20.04 LTS:
   ovn-central                     20.03.2-0ubuntu0.20.04.5
   ovn-common                      20.03.2-0ubuntu0.20.04.5
   ovn-host                        20.03.2-0ubuntu0.20.04.5
   ovn-ic                          20.03.2-0ubuntu0.20.04.5

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

References:
   https://ubuntu.com/security/notices/USN-6691-1
   CVE-2024-2182

Package Information:
   https://launchpad.net/ubuntu/+source/ovn/23.09.0-1ubuntu0.1
   https://launchpad.net/ubuntu/+source/ovn/22.03.3-0ubuntu0.22.04.2
   https://launchpad.net/ubuntu/+source/ovn/20.03.2-0ubuntu0.20.04.5