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.
Published 2023-04-10 22:15:09
Updated 2023-11-26 11:15:08
Source Red Hat, Inc.
View at NVD,   CVE.org

Products affected by CVE-2023-1668

Exploit prediction scoring system (EPSS) score for CVE-2023-1668

0.34%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 71 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-1668

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
8.2
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
3.9
4.2
NIST

CWE ids for CVE-2023-1668

  • The code contains a control flow path that does not reflect the algorithm that the path is intended to implement, leading to incorrect behavior any time this path is navigated.
    Assigned by:
    • nvd@nist.gov (Primary)
    • secalert@redhat.com (Secondary)

References for CVE-2023-1668

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