v1.11.10-lts.1

This is the first fixed release by KLTS for v1.11.10.

Patches

• CVE-2019-11245

  Containers for pods that do not specify an explicit runAsUser attempt to run as uid 0 (root) on container restart, or if the image was previously pulled to the node.

• CVE-2019-11246

  This vulnerability may allow an attacker to use the kubectl cp command to write malicious files in the container tar package to any path on the host using Path Traversal. This process is limited only by the system permissions of the local user.

• CVE-2019-11247

  API Server mistakenly allows access to a cluster-scoped custom resource.

• CVE-2019-11248

  The debugging endpoint /debug/pprof is exposed over the unauthenticated Kubelet healthz port.

• CVE-2019-11249

  This vulnerability may allow an attacker to use the kubectl cp command to write malicious files in the container tar package to any path on the host using Path Traversal. This process is limited only by the system permissions of the local user.

• CVE-2019-11251

  This vulnerability may allow an attacker to use the kubectl cp command to write malicious files in the container tar package to any path on the host using Path Traversal. This process is limited only by the system permissions of the local user.

• CVE-2020-8552

  This vulnerability may make the API Server vulnerable to a DoS (Denial of Service) attack caused by successful API requests.

• CVE-2020-8558

  The kube-proxy component was found to set the kernel parameter net.ipv4.conf.all.route_localnet=1 in both iptables and ipvs modes to allow local loopback access. An attacker may use the container sharing the host network, or bind and listen to the TCP/UDP service of the local 127.0.0.1 on the cluster node to access the same LAN or adjacent node under the second layer network to obtain interface information. If your service does not set the necessary security certification, it may cause the risk of information leakage.

• TODO CVE-2020-8559

  This is a security vulnerability of the kube-apiserver component. An attacker can intercept certain upgrade requests sent to the node kubelet, and forward the request to other target nodes through the original access credentials in the request that could allow an attacker to escalate privileges from a node compromise to a full cluster compromise.

• CVE-2021-3121

  A program with this vulnerability may crash because of processing some messages that contain malicious Protobuf. If the version of Gogo Protobuf you are using is too low, this vulnerability may exist.

• nokmem

  The node has sufficient disks, but it keeps reporting that the disk is insufficient to create a Pod.