CVE-2022-4967

Publication date 13 May 2024

Last updated 26 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.7 · High

Score breakdown

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

Status

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

Notes

eslerm

remediator is Tobias Brunner

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
strongswan

Severity score breakdown

Parameter Value
Base score 7.7 · High
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Changed
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

Other references