Upstream information
Description
The Kubernetes kubelet component in versions 1.1-1.16.12, 1.17.0-1.17.8 and 1.18.0-1.18.5 do not account for disk usage by a pod which writes to its own /etc/hosts file. The /etc/hosts file mounted in a pod by kubelet is not included by the kubelet eviction manager when calculating ephemeral storage usage by a pod. If a pod writes a large amount of data to the /etc/hosts file, it could fill the storage space of the node and cause the node to fail.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
| National Vulnerability Database | |
|---|---|
| Base Score | 2.1 |
| Vector | AV:L/AC:L/Au:N/C:N/I:N/A:P |
| Access Vector | Local |
| Access Complexity | Low |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Partial |
| National Vulnerability Database | SUSE | |
|---|---|---|
| Base Score | 5.5 | 5.5 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Local | Local |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | None |
| Integrity Impact | None | None |
| Availability Impact | High | High |
| CVSSv3 Version | 3.1 | 3.1 |
SUSE Security Advisories:
- SUSE-CU-2020:385-1, published Wed Aug 12 01:43:35 MDT 2020
- SUSE-CU-2020:386-1, published Wed Aug 12 01:48:03 MDT 2020
- SUSE-CU-2020:388-1, published Wed Aug 12 01:50:53 MDT 2020
- SUSE-CU-2020:389-1, published Wed Aug 12 01:56:23 MDT 2020
- SUSE-CU-2020:789-1, published Sat Dec 12 00:11:49 MST 2020
- SUSE-CU-2020:791-1, published Sat Dec 12 00:12:38 MST 2020
- SUSE-CU-2020:793-1, published Sat Dec 12 00:14:47 MST 2020
- SUSE-RU-2020:2204-1, published Tue Aug 11 10:16:20 MDT 2020
List of released packages
| Product(s) | Fixed package version(s) | References |
|---|---|---|
| Container caasp/v4/caasp-dex:2.16.0 |
| |
| Container caasp/v4/cilium-operator:1.6.6 |
| |
| Container caasp/v4/cilium:1.6.6 |
| |
| Container caasp/v4/gangway:3.1.0 |
| |
| Container caasp/v4/hyperkube:v1.17.17 |
| |
| Container caasp/v4/kubernetes-client:1.17.17 Container caasp/v4/kucero:1.3.0 Container caasp/v4/kured:1.3.0 |
| |
| SUSE CaaS Platform 4.0 |
| Patchnames: SUSE-SUSE-CAASP-4.0-2020-2204 |
| SUSE Enterprise Storage 6 SUSE Linux Enterprise High Performance Computing 15 SP1 SUSE Linux Enterprise Module for Containers 15 SP1 SUSE Linux Enterprise Server 15 SP1 SUSE Linux Enterprise Server for SAP Applications 15 SP1 SUSE Manager Proxy 4.0 SUSE Manager Retail Branch Server 4.0 SUSE Manager Server 4.0 |
| Patchnames: SUSE-SLE-Module-Containers-15-SP1-2020-2204 |
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 |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise Server 12 SP5 | kubernetes | Not affected |
| SUSE Linux Enterprise Server Business Critical Linux 15 SP1 | kubernetes | Released |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kubernetes | Not affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| Magnum Orchestration 7 | kubernetes | Unsupported |
| SUSE CaaS Platform 3.0 | kubernetes | Unsupported |
| SUSE CaaS Platform 4.0 | caasp-release | Released |
| SUSE CaaS Platform 4.0 | kubernetes | Released |
| SUSE CaaS Platform 4.0 | skuba | Released |
| SUSE Container as a Service Platform 1.0 | kubernetes | Unsupported |
| SUSE Container as a Service Platform 2.0 | kubernetes | Unsupported |
| SUSE Enterprise Storage 6 | kubernetes | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | kubernetes | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | kubernetes | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | kubernetes | Released |
| SUSE Linux Enterprise Module for Containers 15 SP1 | kubernetes | Released |
| SUSE Linux Enterprise Module for Public Cloud 12 | kubernetes | Not affected |
| 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 | Released |
| SUSE Linux Enterprise Server 15 SP1-BCL | kubernetes | Affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | kubernetes | Released |
| 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 | Released |
| SUSE Manager Proxy 4.0 | kubernetes | Released |
| SUSE Manager Retail Branch Server 4.0 | kubernetes | Released |
| SUSE Manager Server 4.0 | kubernetes | Released |
SUSE Timeline for this CVE
CVE page created: Fri Jul 10 10:12:05 2020CVE page last modified: Mon Nov 18 13:57:09 2024