---
title: "CVE-2022-32166\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2022-32166?format=md
keywords: index, follow
---

# CVE-2022-32166

Publication date 28 September 2022

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**8.8 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2022-32166?format=md#impact-score)

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## Description

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.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| openvswitch | 22.10 kinetic | Not affected |
| 22.04 LTS jammy | Not affected |
| 20.04 LTS focal | Not affected |
| 18.04 LTS bionic | Fixed 2.9.8-0ubuntu0.18.04.3 |
| 16.04 LTS xenial | Fixed 2.5.9-0ubuntu0.16.04.3+esm1  Ubuntu Pro |
| 14.04 LTS trusty | Ignored end of standard support |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2022-32166?format=md#patch-details)

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### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| openvswitch | * Upstream:   [2ed6505](https://github.com/cloudbase/ovs/commit/2ed6505555cdcb46f9b1f0329d1491b75290fc73) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

8.8 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | Low |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 8.8 · High |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-32166)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2022-32166)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2022-32166)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2022-32166)

### Related Ubuntu Security Notices (USN)

+ [USN-5698-1](https://usn.ubuntu.com/USN-5698-1)
+ Open vSwitch vulnerability
+ 25 October 2022

+ [USN-5698-2](https://usn.ubuntu.com/USN-5698-2)
+ Open vSwitch vulnerability
+ 25 October 2022

### Other references

* <https://www.mend.io/vulnerability-database/CVE-2022-32166>
* <https://www.cve.org/CVERecord?id=CVE-2022-32166>