CVE-2023-1668

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.

Category

8.2
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.08%
Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org
Affected: n/a openvswitch
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2137666 third party advisory issue tracking
https://www.openwall.com/lists/oss-security/2023/04/06/1 patch mailing list mitigation
https://www.debian.org/security/2023/dsa-5387 third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2GUNS3WSJG4TUDKZ5L7FXGJMVOD6EJZ/ vendor advisory
https://lists.debian.org/debian-lts-announce/2023/05/msg00000.html mailing list
https://security.gentoo.org/glsa/202311-16 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-1668?
CVE-2023-1668 has been scored as a high severity vulnerability.
How to fix CVE-2023-1668?
To fix CVE-2023-1668, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-1668 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-1668 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-1668?
CVE-2023-1668 affects n/a openvswitch.
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