PT-2020-20212 · Linux Foundation+4 · Kubernetes+3

Derek0405 + 1 · Published 2020-10-15 · Updated 2025-08-08 · CVE-2020-8566

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Kubernetes versions prior to 1.19.3 Kubernetes versions prior to 1.18.10 Kubernetes versions prior to 1.17.13

Description In Kubernetes clusters using Ceph RBD as a storage provisioner, with a logging level of at least 4, Ceph RBD admin secrets can be written to logs. This occurs in kube-controller-manager's logs during the provisioning of Ceph RBD persistent claims.

Recommendations For versions prior to 1.19.3, consider updating to version 1.19.3 or later to resolve the issue. For versions prior to 1.18.10, consider updating to version 1.18.10 or later to resolve the issue. For versions prior to 1.17.13, consider updating to version 1.17.13 or later to resolve the issue. As a temporary workaround, consider reducing the logging level to below 4 to minimize the risk of sensitive information being written to logs.

Fix

Insertion into Log File

Weakness Enumeration

CWE-532

Related Identifiers

ALT-PU-2021-1227

ALT-PU-2021-1495

ALT-PU-2022-1245

CVE-2020-8566

GHSA-5X96-J797-5QQW

GO-2024-2754

OPENSUSE-SU-2025:15424-1

RHSA-2020:5634

SUSE-SU-2020:3760-1

Affected Products

Alt Linux

Ceph Rbd

Kubernetes

Suse

References · 83

• https://cve.org/CVERecord?id=CVE-2020-8566 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2020:3760-1 · Vendor Advisory
• https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ · Patch
• https://osv.dev/vulnerability/GHSA-5x96-j797-5qqw · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-8566 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2020-8566 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-8566 · Vendor Advisory
• https://osv.dev/vulnerability/GO-2024-2754 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-8566 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-8566 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:15424-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-8566 · Vendor Advisory
• https://github.com/kubernetes/kubernetes · Note
• https://github.com/kubernetes/kubernetes/issues/95624 · Note
• https://github.com/kubernetes/kubernetes/pull/95245 · Note