Symlink Attack Affecting k8s.io/kubernetes/pkg/util/mount package, versions >=1.3.0 <1.7.14 >=1.8.0 <1.8.9 >=1.9.0 <1.9.4


0.0
critical

Snyk CVSS

    Attack Complexity Low
    Scope Changed
    Confidentiality High
    Integrity High

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.2% (58th percentile)
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NVD
9.6 critical
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Red Hat
7.2 high

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  • Snyk ID SNYK-GOLANG-K8SIOKUBERNETESPKGUTILMOUNT-2825264
  • published 17 May 2022
  • disclosed 17 May 2022
  • credit Maxim Ivanov

How to fix?

Upgrade k8s.io/kubernetes/pkg/util/mount to version 1.7.14, 1.8.9, 1.9.4 or higher.

Overview

k8s.io/kubernetes/pkg/util/mount is a Production-Grade Container Scheduling and Management.

Affected versions of this package are vulnerable to Symlink Attack due to not enforcing limitations on symlink creation in mounts, allowing said symlinks to point to resources outside the volumes specified in the pod using relative path syntax.