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USN-6690-1: Open vSwitch vulnerabilities

12 March 2024

Several security issues were fixed in Open vSwitch.

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Releases

Packages

Details

Timothy Redaelli and Haresh Khandelwal discovered that Open vSwitch
incorrectly handled certain crafted Geneve packets when hardware offloading
via the netlink path is enabled. A remote attacker could possibly use this
issue to cause Open vSwitch to crash, leading to a denial of service.
(CVE-2023-3966)

It was discovered that Open vSwitch incorrectly handled certain ICMPv6
Neighbor Advertisement packets. A remote attacker could possibly use this
issue to redirect traffic to arbitrary IP addresses. (CVE-2023-5366)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 23.10
Ubuntu 22.04
Ubuntu 20.04

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.

Related notices

  • USN-6514-1: ovn-central, openvswitch-source, openvswitch-switch-dpdk, openvswitch-vtep, openvswitch-doc, python-openvswitch, openvswitch, openvswitch-common, ovn-common, ovn-controller-vtep, openvswitch-switch, ovn-docker, ovn-host, openvswitch-test, python3-openvswitch, openvswitch-testcontroller, openvswitch-pki