Ubuntu Security Notices
USN-6772-1

USN-6772-1: strongSwan vulnerability

Publication date

14 May 2024

Overview

A valid certificate could be used to impersonate any other user or system under certain setups.

Releases

22.04 LTS

Packages

strongswan - IPsec VPN solution

Details

Jan Schermer discovered that strongSwan incorrectly validated client
certificates in certain configurations. A remote attacker could possibly
use this issue to bypass access controls.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release	Package Version
22.04 jammy	libstrongswan – 5.9.5-2ubuntu2.3
22.04 jammy	strongswan – 5.9.5-2ubuntu2.3

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References

CVE-2022-4967

CVE-2022-4967