CVE-2021-25741

HIGH severity · CVSS 8.8 · Improper input validation

8.8CVSS HIGH

Summary

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.

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredLow

User interactionNone

Confidentiality impactHigh

Integrity impactHigh

Availability impactHigh

Exploit probability (EPSS)33%

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products we track (1)

Kubernetes

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Additional information

NVD record
https://github.com/kubernetes/kubernetes/issues/104980Advisory
https://groups.google.com/g/kubernetes-security-announce/c/nyfdhK24H7sMitigation
https://github.com/kubernetes/kubernetes/issues/104980Advisory
https://groups.google.com/g/kubernetes-security-announce/c/nyfdhK24H7sMitigation
https://security.netapp.com/advisory/ntap-20211008-0006/Advisory
https://security.netapp.com/advisory/ntap-20211008-0006/Advisory