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Node Denial of Service via kubelet Checkpoint API

Moderate severity GitHub Reviewed Published Feb 13, 2025 to the GitHub Advisory Database • Updated Feb 13, 2025

Package

gomod k8s.io/kubernetes (Go)

Affected versions

>= 1.32.0, < 1.32.2
>= 1.31.0, < 1.31.6
>= 1.30.0, < 1.30.10
< 1.29.14

Patched versions

1.32.2
1.31.6
1.30.10
1.29.14

Description

A security issue was discovered in Kubernetes where a large number of container checkpoint requests made to the unauthenticated kubelet read-only HTTP endpoint may cause a Node Denial of Service by filling the Node's disk.

References

Published by the National Vulnerability Database Feb 13, 2025
Published to the GitHub Advisory Database Feb 13, 2025
Reviewed Feb 13, 2025
Last updated Feb 13, 2025

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

Weaknesses

CVE ID

CVE-2025-0426

GHSA ID

GHSA-jgfp-53c3-624w

Source code

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