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Open Vswitch CVE-2023-1668

HIGH
Always-Incorrect Control Flow Implementation (CWE-670)
2023-04-10 secalert@redhat.com
8.2
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.2 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High

Lifecycle Timeline

1
CVE Published
Apr 10, 2023 - 22:15 nvd
HIGH 8.2

DescriptionNVD

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.

AnalysisAI

A flaw was found in openvswitch (OVS). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-670. 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. Affected products include: Cloudbase Open Vswitch, Debian Debian Linux, Redhat Openshift Container Platform, Redhat Openstack Platform, Redhat Virtualization.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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CVE-2023-1668 vulnerability details – vuln.today

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