CVE-2021-25735
CVE-2021-25735 · Validating Admission Webhook does not observe some previous fields
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 6.5 · Medium · EPSS 5.4% · Fix available
- Published
- Updated
Stack: system · containers
Affected products and versions
kubernetes
- Versions
- ≥ unspecified, ≤ 1.18.17: Affected (custom)
- ≥ unspecified, ≤ 1.19.9: Affected (custom)
- ≥ unspecified, ≤ 1.20.5: Affected (custom)
No fix published
kubernetes Debian:12
- Affected ranges
- ECOSYSTEM: < 1.20.5+really1.20.2-1
Update to 1.20.5+really1.20.2-1
kubernetes Debian:13
- Affected ranges
- ECOSYSTEM: < 1.20.5+really1.20.2-1
Update to 1.20.5+really1.20.2-1
kubernetes Debian:14
- Affected ranges
- ECOSYSTEM: < 1.20.5+really1.20.2-1
Update to 1.20.5+really1.20.2-1