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Improper Input Validation Affecting k8s.io/kubernetes/pkg/apis/discovery/validation package, versions >=1.21.0 <1.21.1 >=1.20.0 <1.20.7 >=1.19.0 <1.19.11 <1.18.19

0.0
low

  • Attack Complexity

    Low

  • Privileges Required

    High

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  • snyk-id

    SNYK-GOLANG-K8SIOKUBERNETESPKGAPISDISCOVERYVALIDATION-1295564

  • published

    19 May 2021

  • disclosed

    12 May 2021

  • credit

    The Kubernetes Product Security Committee

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Introduced: 12 May 2021

CVE-2021-25737 Open this link in a new tab
CWE-20 Open this link in a new tab

How to fix?

Upgrade k8s.io/kubernetes/pkg/apis/discovery/validation to version 1.21.1, 1.20.7, 1.19.11, 1.18.19 or higher.

Overview

Affected versions of this package are vulnerable to Improper Input Validation. A security issue was discovered in Kubernetes where an authorized user may be able to redirect traffic to private networks on a Node. An untrusted user could exploit this by creating or modifying EndpointSlices to point to localhost or link-local addresses.