CVE-2023-1668

Publication date 10 April 2023

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results (for both kernel and userspace datapath) in installing a datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
openvswitch	24.04 LTS noble	Fixed 3.1.0-1ubuntu1
	23.10 mantic	Fixed 3.1.0-1ubuntu1
	23.04 lunar	Fixed 3.1.0-1ubuntu1
	22.10 kinetic	Fixed 3.0.3-0ubuntu0.22.10.3
	22.04 LTS jammy	Fixed 2.17.5-0ubuntu0.22.04.2
	20.04 LTS focal	Fixed 2.13.8-0ubuntu1.2
	18.04 LTS bionic	Fixed 2.9.8-0ubuntu0.18.04.5
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Ignored

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
openvswitch	Upstream: 9d84092 Upstream: 61b39d8 Upstream: 0ec9af2 Upstream: 27fb5db Upstream: 42f2b4b Upstream: f36509f Upstream: b46505f Upstream: 7fa0106

Severity score breakdown

Parameter	Value
Base score	8.2 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-6068-1
Open vSwitch vulnerability
10 May 2023