USN-6068-1: Open vSwitch vulnerability

Releases

• Ubuntu 22.10
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• openvswitch - Ethernet virtual switch

Details

David Marchand discovered that Open vSwitch incorrectly handled IP packets
with the protocol set to 0. A remote attacker could possibly use this issue
to cause a denial of service.

Update instructions

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

Ubuntu 22.10

• openvswitch-common - 3.0.3-0ubuntu0.22.10.3
• python3-openvswitch - 3.0.3-0ubuntu0.22.10.3

Ubuntu 22.04

• openvswitch-common - 2.17.5-0ubuntu0.22.04.2
• python3-openvswitch - 2.17.5-0ubuntu0.22.04.2

Ubuntu 20.04

• openvswitch-common - 2.13.8-0ubuntu1.2
• python3-openvswitch - 2.13.8-0ubuntu1.2

Ubuntu 18.04

• openvswitch-common - 2.9.8-0ubuntu0.18.04.5
• python-openvswitch - 2.9.8-0ubuntu0.18.04.5
• python3-openvswitch - 2.9.8-0ubuntu0.18.04.5

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

References

• CVE-2023-1668