1. Ubuntu Security Notices
  2. USN-6690-1

USN-6690-1: Open vSwitch vulnerabilities

Publication date

12 March 2024

Overview

Several security issues were fixed in Open vSwitch.

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)

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)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
23.10 mantic openvswitch-common –  3.2.2-0ubuntu0.23.10.1
python3-openvswitch –  3.2.2-0ubuntu0.23.10.1
22.04 jammy openvswitch-common –  2.17.9-0ubuntu0.22.04.1
python3-openvswitch –  2.17.9-0ubuntu0.22.04.1
20.04 focal openvswitch-common –  2.13.8-0ubuntu1.4
python3-openvswitch –  2.13.8-0ubuntu1.4

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References

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