CVE-2022-39272

Flux2 vulnerable to Denial of Service due to Improper use of metav1.Duration

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Flux es una solución de entrega continua abierta y extensible para Kubernetes. Las versiones anteriores a 0.35.0, están sujetas a una denegación de servicio. Los usuarios que presentan permisos para cambiar los objetos de Flux, ya sea medainyte una fuente de Flux o directamente dentro de un clúster, pueden proporcionar datos no válidos a los campos ".spec.interval" o ".spec.timeout" (y variaciones estructuradas de estos campos), causando que todo el tipo de objeto deje de ser procesado. Este problema ha sido corregido en versión 0.35.0. Como mitigación, pueden emplearse controladores de admisión para restringir los valores que pueden usarse para los campos ".spec.interval" y ".spec.timeout", aunque la actualización a las últimas versiones sigue siendo la mitigación recomendada

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-09-02 CVE Reserved
2022-10-21 CVE Published
2024-05-13 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-1284: Improper Validation of Specified Quantity in Input

CAPEC

References (2)

URL	Tag	Source
https://github.com/fluxcd/flux2/security/advisories/GHSA-f4p5-x4vc-mh4v	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/kubernetes/apimachinery/issues/131	2023-11-07

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Fluxcd Search vendor "Fluxcd"		Flux2 Search vendor "Fluxcd" for product "Flux2"				>= 0.1.0 < 0.35.0 Search vendor "Fluxcd" for product "Flux2" and version " >= 0.1.0 < 0.35.0"		-		Affected
Fluxcd Search vendor "Fluxcd"		Helm-controller Search vendor "Fluxcd" for product "Helm-controller"				>= 0.0.2 < 0.24.0 Search vendor "Fluxcd" for product "Helm-controller" and version " >= 0.0.2 < 0.24.0"		-		Affected
Fluxcd Search vendor "Fluxcd"		Helm-controller Search vendor "Fluxcd" for product "Helm-controller"				0.0.1 Search vendor "Fluxcd" for product "Helm-controller" and version "0.0.1"		alpha1		Affected
Fluxcd Search vendor "Fluxcd"		Helm-controller Search vendor "Fluxcd" for product "Helm-controller"				0.0.1 Search vendor "Fluxcd" for product "Helm-controller" and version "0.0.1"		alpha2		Affected
Fluxcd Search vendor "Fluxcd"		Helm-controller Search vendor "Fluxcd" for product "Helm-controller"				0.0.1 Search vendor "Fluxcd" for product "Helm-controller" and version "0.0.1"		beta1		Affected
Fluxcd Search vendor "Fluxcd"		Helm-controller Search vendor "Fluxcd" for product "Helm-controller"				0.0.1 Search vendor "Fluxcd" for product "Helm-controller" and version "0.0.1"		beta2		Affected
Fluxcd Search vendor "Fluxcd"		Helm-controller Search vendor "Fluxcd" for product "Helm-controller"				0.0.1 Search vendor "Fluxcd" for product "Helm-controller" and version "0.0.1"		beta3		Affected
Fluxcd Search vendor "Fluxcd"		Helm-controller Search vendor "Fluxcd" for product "Helm-controller"				0.0.1 Search vendor "Fluxcd" for product "Helm-controller" and version "0.0.1"		beta4		Affected
Fluxcd Search vendor "Fluxcd"		Image-automation-controller Search vendor "Fluxcd" for product "Image-automation-controller"				>= 0.1.0 < 0.26.0 Search vendor "Fluxcd" for product "Image-automation-controller" and version " >= 0.1.0 < 0.26.0"		-		Affected
Fluxcd Search vendor "Fluxcd"		Image-reflector-controller Search vendor "Fluxcd" for product "Image-reflector-controller"				>= 0.1.0 < 0.22.0 Search vendor "Fluxcd" for product "Image-reflector-controller" and version " >= 0.1.0 < 0.22.0"		-		Affected
Fluxcd Search vendor "Fluxcd"		Kustomize-controller Search vendor "Fluxcd" for product "Kustomize-controller"				>= 0.0.2 < 0.29.0 Search vendor "Fluxcd" for product "Kustomize-controller" and version " >= 0.0.2 < 0.29.0"		-		Affected
Fluxcd Search vendor "Fluxcd"		Kustomize-controller Search vendor "Fluxcd" for product "Kustomize-controller"				0.0.1 Search vendor "Fluxcd" for product "Kustomize-controller" and version "0.0.1"		alpha1		Affected
Fluxcd Search vendor "Fluxcd"		Kustomize-controller Search vendor "Fluxcd" for product "Kustomize-controller"				0.0.1 Search vendor "Fluxcd" for product "Kustomize-controller" and version "0.0.1"		alpha2		Affected
Fluxcd Search vendor "Fluxcd"		Kustomize-controller Search vendor "Fluxcd" for product "Kustomize-controller"				0.0.1 Search vendor "Fluxcd" for product "Kustomize-controller" and version "0.0.1"		alpha3		Affected
Fluxcd Search vendor "Fluxcd"		Kustomize-controller Search vendor "Fluxcd" for product "Kustomize-controller"				0.0.1 Search vendor "Fluxcd" for product "Kustomize-controller" and version "0.0.1"		alpha4		Affected
Fluxcd Search vendor "Fluxcd"		Kustomize-controller Search vendor "Fluxcd" for product "Kustomize-controller"				0.0.1 Search vendor "Fluxcd" for product "Kustomize-controller" and version "0.0.1"		alpha5		Affected
Fluxcd Search vendor "Fluxcd"		Kustomize-controller Search vendor "Fluxcd" for product "Kustomize-controller"				0.0.1 Search vendor "Fluxcd" for product "Kustomize-controller" and version "0.0.1"		alpha6		Affected
Fluxcd Search vendor "Fluxcd"		Kustomize-controller Search vendor "Fluxcd" for product "Kustomize-controller"				0.0.1 Search vendor "Fluxcd" for product "Kustomize-controller" and version "0.0.1"		alpha7		Affected
Fluxcd Search vendor "Fluxcd"		Kustomize-controller Search vendor "Fluxcd" for product "Kustomize-controller"				0.0.1 Search vendor "Fluxcd" for product "Kustomize-controller" and version "0.0.1"		alpha8		Affected
Fluxcd Search vendor "Fluxcd"		Kustomize-controller Search vendor "Fluxcd" for product "Kustomize-controller"				0.0.1 Search vendor "Fluxcd" for product "Kustomize-controller" and version "0.0.1"		alpha9		Affected
Fluxcd Search vendor "Fluxcd"		Kustomize-controller Search vendor "Fluxcd" for product "Kustomize-controller"				0.0.1 Search vendor "Fluxcd" for product "Kustomize-controller" and version "0.0.1"		beta1		Affected
Fluxcd Search vendor "Fluxcd"		Kustomize-controller Search vendor "Fluxcd" for product "Kustomize-controller"				0.0.1 Search vendor "Fluxcd" for product "Kustomize-controller" and version "0.0.1"		beta2		Affected
Fluxcd Search vendor "Fluxcd"		Notification-controller Search vendor "Fluxcd" for product "Notification-controller"				>= 0.0.2 < 0.27.0 Search vendor "Fluxcd" for product "Notification-controller" and version " >= 0.0.2 < 0.27.0"		-		Affected
Fluxcd Search vendor "Fluxcd"		Notification-controller Search vendor "Fluxcd" for product "Notification-controller"				0.0.1 Search vendor "Fluxcd" for product "Notification-controller" and version "0.0.1"		alpha1		Affected
Fluxcd Search vendor "Fluxcd"		Notification-controller Search vendor "Fluxcd" for product "Notification-controller"				0.0.1 Search vendor "Fluxcd" for product "Notification-controller" and version "0.0.1"		alpha2		Affected
Fluxcd Search vendor "Fluxcd"		Notification-controller Search vendor "Fluxcd" for product "Notification-controller"				0.0.1 Search vendor "Fluxcd" for product "Notification-controller" and version "0.0.1"		beta1		Affected
Fluxcd Search vendor "Fluxcd"		Source-controller Search vendor "Fluxcd" for product "Source-controller"				>= 0.0.2 < 0.30.0 Search vendor "Fluxcd" for product "Source-controller" and version " >= 0.0.2 < 0.30.0"		-		Affected
Fluxcd Search vendor "Fluxcd"		Source-controller Search vendor "Fluxcd" for product "Source-controller"				0.0.1 Search vendor "Fluxcd" for product "Source-controller" and version "0.0.1"		alpha1		Affected
Fluxcd Search vendor "Fluxcd"		Source-controller Search vendor "Fluxcd" for product "Source-controller"				0.0.1 Search vendor "Fluxcd" for product "Source-controller" and version "0.0.1"		alpha2		Affected
Fluxcd Search vendor "Fluxcd"		Source-controller Search vendor "Fluxcd" for product "Source-controller"				0.0.1 Search vendor "Fluxcd" for product "Source-controller" and version "0.0.1"		alpha3		Affected
Fluxcd Search vendor "Fluxcd"		Source-controller Search vendor "Fluxcd" for product "Source-controller"				0.0.1 Search vendor "Fluxcd" for product "Source-controller" and version "0.0.1"		alpha4		Affected
Fluxcd Search vendor "Fluxcd"		Source-controller Search vendor "Fluxcd" for product "Source-controller"				0.0.1 Search vendor "Fluxcd" for product "Source-controller" and version "0.0.1"		alpha5		Affected
Fluxcd Search vendor "Fluxcd"		Source-controller Search vendor "Fluxcd" for product "Source-controller"				0.0.1 Search vendor "Fluxcd" for product "Source-controller" and version "0.0.1"		alpha6		Affected
Fluxcd Search vendor "Fluxcd"		Source-controller Search vendor "Fluxcd" for product "Source-controller"				0.0.1 Search vendor "Fluxcd" for product "Source-controller" and version "0.0.1"		beta1		Affected
Fluxcd Search vendor "Fluxcd"		Source-controller Search vendor "Fluxcd" for product "Source-controller"				0.0.1 Search vendor "Fluxcd" for product "Source-controller" and version "0.0.1"		beta2		Affected