========================================================================== Ubuntu Security Notice USN-4729-1 February 10, 2021 openvswitch vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: Open vSwitch could be made to crash or perform unexpectedly if it received specially crafted network traffic. Software Description: - openvswitch: Ethernet virtual switch Details: Joakim Hindersson discovered that Open vSwitch incorrectly parsed certain network packets. A remote attacker could use this issue to cause a denial of service, or possibly alter packet classification. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10: openvswitch-common 2.13.1-0ubuntu1.3 Ubuntu 20.04 LTS: openvswitch-common 2.13.1-0ubuntu0.20.04.4 Ubuntu 18.04 LTS: openvswitch-common 2.9.8-0ubuntu0.18.04.2 Ubuntu 16.04 LTS: openvswitch-common 2.5.9-0ubuntu0.16.04.3 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/4729-1 CVE-2020-35498 Package Information: https://launchpad.net/ubuntu/+source/openvswitch/2.13.1-0ubuntu1.3 https://launchpad.net/ubuntu/+source/openvswitch/2.13.1-0ubuntu0.20.04.4 https://launchpad.net/ubuntu/+source/openvswitch/2.9.8-0ubuntu0.18.04.2 https://launchpad.net/ubuntu/+source/openvswitch/2.5.9-0ubuntu0.16.04.3