CVE-2023-1668 — Always-Incorrect Control Flow Implementation in Openvswitch

CWE-670 — Always-Incorrect Control Flow ImplementationCWE-20 — Improper Input Validation9 documents9 sources
Severity
8.2HIGHNVD
EPSS
0.3%
top 44.88%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
OpenvswitchCloudbase Open VswitchDebian Linux+3 more
Timeline
PublishedApr 10
Latest updateSep 21

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

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:HExploitability: 3.9 | Impact: 4.2

Affected Packages5 packages

▶NVDcloudbase/open_vswitch1.5.0 — 2.13.11+6
▶Debianopenvswitch/openvswitch< 2.15.0+ds1-2+deb11u4+3
▶CVEListV5openvswitch/openvswitchunknown
▶NVDredhat/openstack_platform16.1, 16.2, 17.0+2

Also affects: Debian Linux 11.0, Openshift Container Platform 4.0

Patches

Patch: www.openwall.com ↗Patch: www.openwall.com ↗

🔴Vulnerability Details

4
GHSA
Denial of Service issue in quinn-proto↗2023-09-21
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GHSA
GHSA-w6wj-g5cv-fh4w: A flaw was found in openvswitch (OVS)↗2023-04-11
▶
OSV
CVE-2023-1668: A flaw was found in openvswitch (OVS)↗2023-04-10
▶
CVEList
CVE-2023-1668: A flaw was found in openvswitch (OVS)↗2023-04-10
▶

📋Vendor Advisories

4
Ubuntu
Open vSwitch vulnerability↗2023-05-10
▶
Microsoft
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 a↗2023-04-11
▶
Red Hat
openvswitch: ip proto 0 triggers incorrect handling↗2023-04-06
▶
Debian
CVE-2023-1668: openvswitch - A flaw was found in openvswitch (OVS). When processing an IP packet with protoco...↗2023
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