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CVE-2021-25741

CVE-2021-25741 · Symlink Exchange Can Allow Host Filesystem Access

This page contains facts from public vulnerability sources. Check the original advisory before updating.

A security issue was discovered in Kubernetes where a user may be able to create a container with subpath volume mounts to access files & directories outside of the volume, including on the host filesystem.

CVSS 8.8 · High · EPSS 8.0% · Fix available

Published
Updated

Stack: system · containers

Affected products and versions

  • kubernetes

    Versions
    • ≥ unspecified, ≤ 1.19.14: Affected (custom)
    • ≥ unspecified, ≤ 1.20.10: Affected (custom)
    • ≥ unspecified, ≤ 1.21.4: Affected (custom)
    • ≥ unspecified, ≤ 1.22.1: Affected (custom)

    No fix published

  • kubernetes Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.20.5+really1.20.2-1

    Update to 1.20.5+really1.20.2-1

  • kubernetes Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.20.5+really1.20.2-1

    Update to 1.20.5+really1.20.2-1

  • kubernetes Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.20.5+really1.20.2-1

    Update to 1.20.5+really1.20.2-1

Original sources

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