UBUNTU-CVE-2021-25741

Source
https://ubuntu.com/security/CVE-2021-25741
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-25741.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-25741
Upstream
Withdrawn
2025-08-28T17:00:31Z
Published
2021-09-20T17:15:00Z
Modified
2025-07-14T07:00:37.511649Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:Pro:20.04:LTS / kubernetes

Package

Name
kubernetes
Purl
pkg:deb/ubuntu/kubernetes@1.0?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.0

Ubuntu:22.04:LTS / kubernetes

Package

Name
kubernetes
Purl
pkg:deb/ubuntu/kubernetes@1.0?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.0

Ubuntu:24.04:LTS / kubernetes

Package

Name
kubernetes
Purl
pkg:deb/ubuntu/kubernetes@1.0?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.0