Vulnerability in Gardener
CVE-2018-2475
Following the Gardener architecture, the Kubernetes apiserver of a Gardener managed shoot cluster resides in the corresponding seed cluster. Due to missing network isolation a shoot's apiserver can access services/endpoints in the private network of its corresponding seed cluster. Combined with other minor Kubernetes security issues, the missing network isolation theoretically can lead to compromise other shoot or seed clusters in the "Gardener" context. The issue is rated high due to the high impact of a potential exploitation in "Gardener" context. This was fixed in Gardener release 0.12.4.
EPSS: 0.013 (68.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.5 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Gardener
- Sap Project “Gardener” — versions unspecified
References
- cna@sap.com (x_refsource_CONFIRM, Vendor Advisory)
- cna@sap.com (x_refsource_CONFIRM)
- cna@sap.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cna@sap.com (Permissions Required, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-2475?
- CVE-2018-2475 is a high-severity vulnerability in Gardener. CVSS score: 8.5/10. Published 2018-10-09.
- How severe is CVE-2018-2475?
- High severity. CVSS v3 base score is 8.5 out of 10.