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CVE-2023-1668

8.2 · HIGH

A flaw was found in openvswitch (OVS).

Published Apr 10, 2023CWE-670EPSS 1.22%

Overview

CVE-2023-1668 is a high-severity vulnerability. It was published on April 10, 2023 and has a CVSS 3.1 base score of 8.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refbugzilla.redhat.com/show_bug.cgi?id=2137666Reflists.debian.org/debian-lts-announce/2023/05/msg00000.htmlReflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2GUNS3WSJG4TUDKZ5L7FXGJMVOD6EJZ/Refsecurity.gentoo.org/glsa/202311-16Refwww.debian.org/security/2023/dsa-5387Refwww.openwall.com/lists/oss-security/2023/04/06/1Refbugzilla.redhat.com/show_bug.cgi?id=2137666Reflists.debian.org/debian-lts-announce/2023/05/msg00000.htmlReflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2GUNS3WSJG4TUDKZ5L7FXGJMVOD6EJZ/Refsecurity.gentoo.org/glsa/202311-16

How CyberStrike helps

Frequently asked questions

What is CVE-2023-1668?

CVE-2023-1668 is a high-severity vulnerability. It was published on April 10, 2023 and has a CVSS 3.1 base score of 8.2 (HIGH).

How severe is CVE-2023-1668?

This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-1668?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-1668?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-1668 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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