Skip to content
Fencer Vulns
medium 6.1

CVE-2022-32166 json

ovs - buffer over-read

published 2022-09-28 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-53397

cvss
6.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits
0
none known

Summary

In ovs versions v0.90.0 through v2.5.0 are vulnerable to heap buffer over-read in flow.c. An unsafe comparison of “minimasks” function could lead access to an unmapped region of memory. This vulnerability is capable of crashing the software, memory modification, and possible remote execution.

Patch / fix

  • openvswitch Debian 14, Debian 13, Debian 12 2.13.0+dfsg1-1

debian advisories DEBIAN-CVE-2022-32166

  • openvswitch Ubuntu 18.04 LTS 2.9.8-0ubuntu0.18.04.3
  • openvswitch Ubuntu Pro 16.04 LTS 2.5.9-0ubuntu0.16.04.3+esm1

ubuntu advisories UBUNTU-CVE-2022-32166

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

  • openvswitch SLES for SAP 12 SP4, SLES 12 SP4-LTSS, SLES 12 SP4-ESPOS +2 more 2.8.10-4.33.1
  • 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 SP4, openSUSE Leap 15.4 2.11.5-150100.3.18.2
  • dpdk SLE Module for Package Hub 15 SP4, openSUSE Leap 15.4 18.11.9-150100.4.23.1
  • openvswitch SLES for SAP 12 SP5, SLES 12 SP5 2.11.5-3.12.1

suse advisories SUSE-SU-2023:2360-1SUSE-SU-2023:2259-1SUSE-SU-2023:1795-1SUSE-SU-2022:4050-1

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-2022-32166 updated cvss 8.6

openvswitch: Heap buffer over-read in flow.c

  • Red Hat Enterprise Linux 7 openvswitch, openvswitch-test, python-openvswitch, openvswitch-controller
    affected: no fix available
  • 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, openvswitch2.13, openvswitch2.15, openvswitch2.16, openvswitch2.17, +22 more Red Hat Fast Datapath for RHEL 9 openvswitch2.17, openvswitch2.17-test, openvswitch2.17-ipsec, python3-openvswitch2.17 Red Hat OpenShift Container Platform 4 openvswitch2.13, openvswitch2.15, openvswitch2.16, openvswitch2.17, openvswitch2.13-test, openvswitch2.15-test, +13 more Red Hat OpenStack Platform 13 (Queens) openvswitch, openvswitch2.11, openvswitch-test, rhosp-openvswitch, python-openvswitch, openvswitch-ovn-host, +11 more Red Hat Virtualization 4 openvswitch2.10, openvswitch2.11, rhv-openvswitch, openvswitch2.11-test, python-openvswitch2.10, python-openvswitch2.11, +7 more
    not affected: vulnerable code not present

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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
17 mo ago

Exploit prediction

0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
CNA 3.1 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H

Affected products

  • ovs ovs

Classification

Weakness

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.