UBUNTU-CVE-2020-8561

Source
https://ubuntu.com/security/CVE-2020-8561
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8561.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-8561
Related
Published
2021-09-20T17:15:00Z
Modified
2025-01-13T10:22:10Z
Severity
  • 4.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N CVSS Calculator
Summary
[none]
Details

A security issue was discovered in Kubernetes where actors that control the responses of MutatingWebhookConfiguration or ValidatingWebhookConfiguration requests are able to redirect kube-apiserver requests to private networks of the apiserver. If that user can view kube-apiserver logs when the log level is set to 10, they can view the redirected responses and headers in the logs.

References

Affected packages

Ubuntu:20.04:LTS / kubernetes

Package

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

Affected ranges

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

Affected versions

1.*

1.0

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

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

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.10 / kubernetes

Package

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

Affected ranges

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

Affected versions

1.*

1.0

Ecosystem specific

{
    "ubuntu_priority": "medium"
}

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

Ecosystem specific

{
    "ubuntu_priority": "medium"
}