CVE-2023-1668

high

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.

References

https://www.openwall.com/lists/oss-security/2023/04/06/1

https://www.debian.org/security/2023/dsa-5387

https://security.gentoo.org/glsa/202311-16

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2GUNS3WSJG4TUDKZ5L7FXGJMVOD6EJZ/

https://lists.debian.org/debian-lts-announce/2023/05/msg00000.html

https://bugzilla.redhat.com/show_bug.cgi?id=2137666

Details

Source: Mitre, NVD

Published: 2023-04-10

Updated: 2023-11-26

Risk Information

CVSS v2

Base Score: 8.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:C

Severity: High

CVSS v3

Base Score: 8.2

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Severity: High