Skip to content
Fencer Vulns
critical 9.8

CVE-2022-4338 json

An integer underflow in Organization Specific TLV was found in various versions of OpenvSwitch.

published 2023-01-10 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-51691

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

An integer underflow in Organization Specific TLV was found in various versions of OpenvSwitch.

Patch / fix

  • openvswitch openvswitch 2.13.10, 2.14.8, 2.15.7, 2.16.6, 2.17.5, 3.0.3
  • openvswitch Debian 14, Debian 13, Debian 12 3.1.0~git20221212.739bcf2-4

debian advisories DEBIAN-CVE-2022-4338

  • openvswitch Ubuntu 18.04 LTS 2.9.8-0ubuntu0.18.04.4
  • openvswitch Ubuntu 20.04 LTS 2.13.8-0ubuntu1.1
  • openvswitch Ubuntu 22.04 LTS 2.17.3-0ubuntu0.22.04.2

ubuntu advisories UBUNTU-CVE-2022-4338

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • openvswitch2.17 RHEL 9 2.17.0-62.el9fdp
  • openvswitch2.17-test RHEL 9 2.17.0-62.el9fdp
  • openvswitch2.17-ipsec RHEL 9 2.17.0-62.el9fdp
  • python3-openvswitch2.17 RHEL 9 2.17.0-62.el9fdp
  • openvswitch2.13 RHEL 8 2.13.0-212.el8fdp
  • openvswitch2.13-test RHEL 8 2.13.0-212.el8fdp
  • openvswitch2.13-ipsec RHEL 8 2.13.0-212.el8fdp
  • python3-openvswitch2.13 RHEL 8 2.13.0-212.el8fdp

red hat advisories RHSA-2023:0691RHSA-2023:0685RHSA-2023:0688RHSA-2023:0689RHSA-2023:0687

  • openvswitch SLE Module for Server Applications 15 SP4, SLE Module for Package Hub 15 SP5, SLE Module for Package Hub 15 SP4 +3 more 2.14.2-150400.24.6.1
  • openvswitch SLES for SAP 12 SP4, SLES 12 SP4-LTSS, SLES 12 SP4-ESPOS +2 more 2.8.10-4.33.1
  • openvswitch SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Real Time 15 SP3 +5 more 2.14.2-150300.19.8.1
  • openvswitch SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLE High Performance Computing 15 SP2-LTSS +2 more 2.13.2-150200.9.22.1
  • openvswitch SLES 12 SP2-BCL 2.5.11-25.34.1
  • openvswitch-dpdk SLES 12 SP2-BCL 2.5.11-25.34.1
  • openvswitch SLE Module for Package Hub 15 SP5, SLE Module for Package Hub 15 SP4, openSUSE Leap 15.4 2.11.5-150100.3.21.1
  • openvswitch SLES for SAP 12 SP5, SLES 12 SP5 2.11.5-3.15.1

suse advisories SUSE-SU-2023:2250-2SUSE-SU-2023:2360-1SUSE-SU-2023:2275-1SUSE-SU-2023:2274-1SUSE-SU-2023:2259-1SUSE-SU-2023:2255-1

  • openvswitch openSUSE Tumbleweed 3.1.0-12.1

opensuse advisories openSUSE-SU-2024:12860-1

  • openvswitch Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 2.17.5-r0

alpine advisories ALPINE-CVE-2022-4338

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • openvswitch CBL-Mariner 2.0 2.17.5-1

azure linux advisories AZL-12953

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-4338 updated cvss 9.8

openvswitch: Integer Underflow in Organization Specific TLV

  • Red Hat Fast Datapath for RHEL 7 openvswitch, openvswitch2.10, openvswitch2.11, openvswitch2.12, openvswitch2.13, openvswitch-test, +19 more Red Hat Fast Datapath for RHEL 8 openvswitch2.11, openvswitch2.12, openvswitch2.11-test, openvswitch2.12-test, python3-openvswitch2.11, python3-openvswitch2.12, +2 more Red Hat Enterprise Linux 7 openvswitch, openvswitch-test, python-openvswitch, openvswitch-controller
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Container Platform 4 openvswitch2.15, openvswitch2.16, openvswitch2.17, openvswitch2.15-test, openvswitch2.16-test, openvswitch2.17-test, +9 more
    affected: no fix available, no fix planned “Will not fix”
  • Red Hat OpenStack Platform 13 (Queens) openvswitch, openvswitch2.11, openvswitch-test, python-openvswitch, openvswitch-ovn-host, openvswitch-ovn-vtep, +4 more
    affected: no fix planned “Out of support scope”
  • Red Hat Fast Datapath for Red Hat Enterprise Linux 8 openvswitch2.17 2.17.0-71.el8fdp, openvswitch2.13 2.13.0-212.el8fdp, openvswitch2.15 2.15.0-133.el8fdp, openvswitch2.16 2.16.0-111.el8fdp, openvswitch2.17-test 2.17.0-71.el8fdp, openvswitch2.13-test 2.13.0-212.el8fdp, +14 more
    fixed: vendor fix RHSA-2023:0685
  • Red Hat Fast Datapath for Red Hat Enterprise Linux 9 openvswitch2.17 2.17.0-62.el9fdp, openvswitch2.17-test 2.17.0-62.el9fdp, openvswitch2.17-ipsec 2.17.0-62.el9fdp, python3-openvswitch2.17 2.17.0-62.el9fdp
    fixed: vendor fix RHSA-2023:0691

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.39% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • n/a openvswitch

Classification

Weakness
  • CWE-125 Out-of-bounds Read
  • CWE-191 Integer Underflow (Wrap or Wraparound)

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.