CVE-2023-1668

openvswitch: ip proto 0 triggers incorrect handling

Severity Score

8.2

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

*Credits: N/A

CVSS Scores

NISTv3.1 8.2

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-03-27 CVE Reserved
2023-04-10 CVE Published
2024-07-15 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-670: Always-Incorrect Control Flow Implementation

CAPEC

References (7)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2023/05/msg00000.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://www.openwall.com/lists/oss-security/2023/04/06/1	2023-11-26

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=2137666	2023-06-06
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2GUNS3WSJG4TUDKZ5L7FXGJMVOD6EJZ	2023-11-26
https://security.gentoo.org/glsa/202311-16	2023-11-26
https://www.debian.org/security/2023/dsa-5387	2023-11-26
https://access.redhat.com/security/cve/CVE-2023-1668	2023-06-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Redhat Search vendor "Redhat"	Fast Datapath Search vendor "Redhat" for product "Fast Datapath"	-	-	Affected	in	Redhat Search vendor "Redhat"	Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"	7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0"	-	Safe
Redhat Search vendor "Redhat"	Fast Datapath Search vendor "Redhat" for product "Fast Datapath"	-	-	Affected	in	Redhat Search vendor "Redhat"	Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"	8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0"	-	Safe
Cloudbase Search vendor "Cloudbase"		Open Vswitch Search vendor "Cloudbase" for product "Open Vswitch"				>= 1.5.0 < 2.13.11 Search vendor "Cloudbase" for product "Open Vswitch" and version " >= 1.5.0 < 2.13.11"		-		Affected
Cloudbase Search vendor "Cloudbase"		Open Vswitch Search vendor "Cloudbase" for product "Open Vswitch"				>= 2.14.0 < 2.14.9 Search vendor "Cloudbase" for product "Open Vswitch" and version " >= 2.14.0 < 2.14.9"		-		Affected
Cloudbase Search vendor "Cloudbase"		Open Vswitch Search vendor "Cloudbase" for product "Open Vswitch"				>= 2.15.0 < 2.15.8 Search vendor "Cloudbase" for product "Open Vswitch" and version " >= 2.15.0 < 2.15.8"		-		Affected
Cloudbase Search vendor "Cloudbase"		Open Vswitch Search vendor "Cloudbase" for product "Open Vswitch"				>= 2.16.0 < 2.16.7 Search vendor "Cloudbase" for product "Open Vswitch" and version " >= 2.16.0 < 2.16.7"		-		Affected
Cloudbase Search vendor "Cloudbase"		Open Vswitch Search vendor "Cloudbase" for product "Open Vswitch"				>= 2.17.0 < 2.17.6 Search vendor "Cloudbase" for product "Open Vswitch" and version " >= 2.17.0 < 2.17.6"		-		Affected
Cloudbase Search vendor "Cloudbase"		Open Vswitch Search vendor "Cloudbase" for product "Open Vswitch"				>= 3.0.0 < 3.0.4 Search vendor "Cloudbase" for product "Open Vswitch" and version " >= 3.0.0 < 3.0.4"		-		Affected
Cloudbase Search vendor "Cloudbase"		Open Vswitch Search vendor "Cloudbase" for product "Open Vswitch"				3.1.0 Search vendor "Cloudbase" for product "Open Vswitch" and version "3.1.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0"		-		Affected
Redhat Search vendor "Redhat"		Openshift Container Platform Search vendor "Redhat" for product "Openshift Container Platform"				4.0 Search vendor "Redhat" for product "Openshift Container Platform" and version "4.0"		-		Affected
Redhat Search vendor "Redhat"		Openstack Platform Search vendor "Redhat" for product "Openstack Platform"				16.1 Search vendor "Redhat" for product "Openstack Platform" and version "16.1"		-		Affected
Redhat Search vendor "Redhat"		Openstack Platform Search vendor "Redhat" for product "Openstack Platform"				16.2 Search vendor "Redhat" for product "Openstack Platform" and version "16.2"		-		Affected
Redhat Search vendor "Redhat"		Openstack Platform Search vendor "Redhat" for product "Openstack Platform"				17.0 Search vendor "Redhat" for product "Openstack Platform" and version "17.0"		-		Affected
Redhat Search vendor "Redhat"		Virtualization Search vendor "Redhat" for product "Virtualization"				4.0 Search vendor "Redhat" for product "Virtualization" and version "4.0"		-		Affected