Upstream information
Description
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.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
| National Vulnerability Database | |
|---|---|
| Base Score | 5.5 |
| Vector | AV:N/AC:L/Au:S/C:N/I:P/A:P |
| Access Vector | Network |
| Access Complexity | Low |
| Authentication | Single |
| Confidentiality Impact | None |
| Integrity Impact | Partial |
| Availability Impact | Partial |
| National Vulnerability Database | SUSE | |
|---|---|---|
| Base Score | 6.5 | 6.5 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | High | High |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | None |
| Integrity Impact | High | High |
| Availability Impact | High | High |
| CVSSv3 Version | 3.1 | 3.1 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 12 | kubernetes | Not affected |
| SUSE Linux Enterprise Module for Public Cloud 12 | kubernetes | Not affected |
| SUSE Linux Enterprise Server 12 SP5 | kubernetes | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kubernetes | Not affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise Server Business Critical Linux 15 SP1 | kubernetes | Unsupported |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE CaaS Platform 4.0 | kubernetes | Unsupported |
| SUSE CaaS Platform 4.5 | kubernetes-1.18 | Unsupported |
| SUSE Enterprise Storage 6 | kubernetes | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | kubernetes | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | kubernetes | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | kubernetes | Unsupported |
| SUSE Linux Enterprise Module for Containers 15 SP1 | kubernetes | Unsupported |
| SUSE Linux Enterprise Server 12 | kubernetes | Not affected |
| SUSE Linux Enterprise Server 12 SP3 | kubernetes | Not affected |
| SUSE Linux Enterprise Server 12 SP4 | kubernetes | Not affected |
| SUSE Linux Enterprise Server 15 SP1 | kubernetes | Unsupported |
| SUSE Linux Enterprise Server 15 SP1-BCL | kubernetes | Unsupported |
| SUSE Linux Enterprise Server 15 SP1-LTSS | kubernetes | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 12 | kubernetes | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | kubernetes | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kubernetes | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | kubernetes | Unsupported |
| SUSE Manager Proxy 4.0 | kubernetes | Unsupported |
| SUSE Manager Retail Branch Server 4.0 | kubernetes | Unsupported |
| SUSE Manager Server 4.0 | kubernetes | Unsupported |
SUSE Timeline for this CVE
CVE page created: Thu Mar 11 18:13:43 2021CVE page last modified: Mon Apr 29 18:46:35 2024