---
title: "CVE-2022-4967\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-2022-4967?format=md
keywords: index, follow
---

# CVE-2022-4967

Publication date 13 May 2024

Last updated 26 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**7.7 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2022-4967?format=md#impact-score)

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## Description

strongSwan versions 5.9.2 through 5.9.5 are affected by authorization
bypass through improper validation of certificate with host mismatch
(CWE-297). When certificates are used to authenticate clients in TLS-based
EAP methods, the IKE or EAP identity supplied by a client is not enforced
to be contained in the client's certificate. So clients can authenticate
with any trusted certificate and claim an arbitrary IKE/EAP identity as
their own. This is problematic if the identity is used to make policy
decisions. A fix was released in strongSwan version 5.9.6 in August 2022
(e4b4aabc4996fc61c37deab7858d07bc4d220136).

[Read the notes from the security team](https://ubuntu.com/security/CVE-2022-4967?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| strongswan | 24.04 LTS noble | Not affected |
| 23.10 mantic | Not affected |
| 22.04 LTS jammy | Fixed 5.9.5-2ubuntu2.3 |
| 20.04 LTS focal | Not affected |
| 18.04 LTS bionic | Not affected |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not affected |

---

* [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-2022-4967?format=md#patch-details)

## Notes

---

### [eslerm](https://launchpad.net/~eslerm)

remediator is Tobias Brunner

### 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 |
| --- | --- |
| strongswan | * Upstream:   [e4b4aab](https://github.com/strongswan/strongswan/commit/e4b4aabc4996fc61c37deab7858d07bc4d220136) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.7 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.7 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-4967)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2022-4967)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2022-4967)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2022-4967)

### Related Ubuntu Security Notices (USN)

+ [USN-6772-1](https://usn.ubuntu.com/USN-6772-1)
+ strongSwan vulnerability
+ 14 May 2024

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2022-4967>
* <https://www.strongswan.org/blog/2024/05/13/strongswan-vulnerability-(cve-2022-4967).html>