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CVE-2023-1668

Published: Apr 10, 2023Updated: Apr 23, 2025 Sources: CVE List NVD BDUCWE-670

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:HAvailability
High

Weaknesses

Affected Products

debianoss-projectGBOperating Systemsaka debian gnu/linux
redhatcommercialUSOperating Systemsaka red hat
and 6 more affected products View all →

Exploitability

Official Patch Available
Workaround Available

References

and 12 more references View all →

Timeline

Published
Apr 10, 2023
Last Updated
Apr 23, 2025

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