Improper path handling in Kustomization files allows for denial of service
CVE-2022-24878

7.7HIGH

Key Information:

Vendor

Fluxcd

Status
Flux2
Vendor
CVE Published:
6 May 2022

What is CVE-2022-24878?

Flux is an open and extensible continuous delivery solution for Kubernetes. Path Traversal in the kustomize-controller via a malicious kustomization.yaml allows an attacker to cause a Denial of Service at the controller level. Workarounds include automated tooling in the user's CI/CD pipeline to validate kustomization.yaml files conform with specific policies. This vulnerability is fixed in kustomize-controller v0.24.0 and included in flux2 v0.29.0. Users are recommended to upgrade.

Affected Version(s)

flux2 flux2 < v0.28.5, >= v0.19.0 < flux2 v0.28.5, v0.19.0

flux2 kustomize < v0.29.0, >= v0.16.0 < kustomize v0.29.0, v0.16.0

References

https://github.com/fluxcd/flux2/security/advisories/GHSA-...
x_refsource_CONFIRM

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.