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Kubernetes: CVE-2021-25741: Symlink Exchange Can Allow Host Filesystem Access

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Kubernetes: CVE-2021-25741: Symlink Exchange Can Allow Host Filesystem Access

Severity
6
CVSS
(AV:N/AC:L/Au:S/C:P/I:P/A:N)
Published
09/20/2021
Created
03/11/2022
Added
03/10/2022
Modified
03/28/2022

Description

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.

Solution(s)

  • kubernetes-upgrade-1_19_15
  • kubernetes-upgrade-1_20_11
  • kubernetes-upgrade-1_21_5
  • kubernetes-upgrade-1_22_2

References

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