CVE-2019-9946

原始描述

Cloud Native Computing Foundation (CNCF) CNI (Container Networking Interface) 0.7.4 has a network firewall misconfiguration which affects Kubernetes. The CNI 'portmap' plugin, used to setup HostPorts for CNI, inserts rules at the front of the iptables nat chains; which take precedence over the KUBE- SERVICES chain. Because of this, the HostPort/portmap rule could match incoming traffic even if there were better fitting, more specific service definition rules like NodePorts later in the chain. The issue is fixed in CNI 0.7.5 and Kubernetes 1.11.9, 1.12.7, 1.13.5, and 1.14.0.

受影响的软件

• Kubernetes ≥ 1.13.0 < 1.13.5= 1.14.0< 1.11.9≥ 1.12.0 < 1.12.7= 1.13.6 修复版本: 1.13.5, 1.11.9, 1.12.7 精确匹配

详情

发布日期

2019-04-03

最后修改

2024-08-05

CVSS 向量

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

参考资料

• cve.org/CVE-2019-9946
• nvd.nist.gov/vuln/detail/CVE-2019-9946
• github.com/containernetworking/plugins/pull/269#issuecomment-477683272
• security.netapp.com/advisory/ntap-20190416-0002/
• access.redhat.com/errata/RHBA-2019:0862
• lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F...
• lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S...