UBUNTU-CVE-2021-25735
- Source
- https://ubuntu.com/security/CVE-2021-25735
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-25735.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-25735
- Upstream
- Published
- 2021-09-06T12:15:00Z
- Modified
- 2025-07-14T06:45:33.943388Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
- - medium
- Summary
- [none]
- Details
-
A security issue was discovered in kube-apiserver that could allow node updates to bypass a Validating Admission Webhook. Clusters are only affected by this vulnerability if they run a Validating Admission Webhook for Nodes that denies admission based at least partially on the old state of the Node object. Validating Admission Webhook does not observe some previous fields.
- 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
Ubuntu:22.04:LTS / kubernetes
Package
- Name
- kubernetes
- Purl
- pkg:deb/ubuntu/kubernetes@1.0?arch=source&distro=jammy