CVE-2022-39272 MEDIUM

CVE-2022-39272: Flux2 vulnerable to Denial of Service due to Improper use of metav1.Duration

Vendor Fluxcd
Product flux2
Weakness CWE-1284
Published October 21, 2022
Last update April 23, 2025

CVSS base score

5.0/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Flux is an open and extensible continuous delivery solution for Kubernetes. Versions prior to 0.35.0 are subject to a Denial of Service. Users that have permissions to change Flux’s objects, either through a Flux source or directly within a cluster, can provide invalid data to fields `.spec.interval` or `.spec.timeout` (and structured variations of these fields), causing the entire object type to stop being processed. This issue is patched in version 0.35.0. As a workaround, Admission controllers can be employed to restrict the values that can be used for fields `.spec.interval` and `.spec.timeout`, however upgrading to the latest versions is still the recommended mitigation.

Key dates

02Disclosure timeline

October 21, 2022 CVE published
April 23, 2025 Record updated