CVE-2023-2727

Users may be able to launch containers using images that are restricted by ImagePolicyWebhook when using ephemeral containers. Kubernetes clusters are only affected if the ImagePolicyWebhook admission plugin is used together with ephemeral containers.

Container cluster management.

Security Fix(es):

Users authorized to list or watch one type of namespaced custom resource cluster-wide can read custom resources of a different type in the same API group without authorization. Clusters are impacted by this vulnerability if all of the following are true: 1. There are 2+ CustomResourceDefinitions sharing the same API group 2. Users have cluster-wide list or watch authorization on one of those custom resources. 3. The same users are not authorized to read another custom resource in the same API group.(CVE-2022-3162)

Users may have access to secure endpoints in the control plane network. Kubernetes clusters are only affected if an untrusted user can modify Node objects and send proxy requests to them. Kubernetes supports node proxying, which allows clients of kube-apiserver to access endpoints of a Kubelet to establish connections to Pods, retrieve container logs, and more. While Kubernetes already validates the proxying address for Nodes, a bug in kube-apiserver made it possible to bypass this validation. Bypassing this validation could allow authenticated requests destined for Nodes to to the API server's private network.(CVE-2022-3294)

A security issue was discovered in Kubelet that allows pods to bypass the seccomp profile enforcement. Pods that use localhost type for seccomp profile but specify an empty profile field, are affected by this issue. In this scenario, this vulnerability allows the pod to run in unconfined (seccomp disabled) mode. This bug affects Kubelet.(CVE-2023-2431)

Users may be able to launch containers using images that are restricted by ImagePolicyWebhook when using ephemeral containers. Kubernetes clusters are only affected if the ImagePolicyWebhook admission plugin is used together with ephemeral containers.

(CVE-2023-2727)

Users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using ephemeral containers. The policy ensures pods running with a service account may only reference secrets specified in the service account’s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the kubernetes.io/enforce-mountable-secrets annotation are used together with ephemeral containers.

(CVE-2023-2728)

Container cluster management.

Security Fix(es):

Users authorized to list or watch one type of namespaced custom resource cluster-wide can read custom resources of a different type in the same API group without authorization. Clusters are impacted by this vulnerability if all of the following are true: 1. There are 2+ CustomResourceDefinitions sharing the same API group 2. Users have cluster-wide list or watch authorization on one of those custom resources. 3. The same users are not authorized to read another custom resource in the same API group.(CVE-2022-3162)

Users may have access to secure endpoints in the control plane network. Kubernetes clusters are only affected if an untrusted user can modify Node objects and send proxy requests to them. Kubernetes supports node proxying, which allows clients of kube-apiserver to access endpoints of a Kubelet to establish connections to Pods, retrieve container logs, and more. While Kubernetes already validates the proxying address for Nodes, a bug in kube-apiserver made it possible to bypass this validation. Bypassing this validation could allow authenticated requests destined for Nodes to to the API server's private network.(CVE-2022-3294)

A security issue was discovered in Kubelet that allows pods to bypass the seccomp profile enforcement. Pods that use localhost type for seccomp profile but specify an empty profile field, are affected by this issue. In this scenario, this vulnerability allows the pod to run in unconfined (seccomp disabled) mode. This bug affects Kubelet.(CVE-2023-2431)

Users may be able to launch containers using images that are restricted by ImagePolicyWebhook when using ephemeral containers. Kubernetes clusters are only affected if the ImagePolicyWebhook admission plugin is used together with ephemeral containers.

(CVE-2023-2727)

Users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using ephemeral containers. The policy ensures pods running with a service account may only reference secrets specified in the service account’s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the kubernetes.io/enforce-mountable-secrets annotation are used together with ephemeral containers.

(CVE-2023-2728)

Container cluster management.

Security Fix(es):

Users authorized to list or watch one type of namespaced custom resource cluster-wide can read custom resources of a different type in the same API group without authorization. Clusters are impacted by this vulnerability if all of the following are true: 1. There are 2+ CustomResourceDefinitions sharing the same API group 2. Users have cluster-wide list or watch authorization on one of those custom resources. 3. The same users are not authorized to read another custom resource in the same API group.(CVE-2022-3162)

Users may have access to secure endpoints in the control plane network. Kubernetes clusters are only affected if an untrusted user can modify Node objects and send proxy requests to them. Kubernetes supports node proxying, which allows clients of kube-apiserver to access endpoints of a Kubelet to establish connections to Pods, retrieve container logs, and more. While Kubernetes already validates the proxying address for Nodes, a bug in kube-apiserver made it possible to bypass this validation. Bypassing this validation could allow authenticated requests destined for Nodes to to the API server's private network.(CVE-2022-3294)

A security issue was discovered in Kubelet that allows pods to bypass the seccomp profile enforcement. Pods that use localhost type for seccomp profile but specify an empty profile field, are affected by this issue. In this scenario, this vulnerability allows the pod to run in unconfined (seccomp disabled) mode. This bug affects Kubelet.(CVE-2023-2431)

Users may be able to launch containers using images that are restricted by ImagePolicyWebhook when using ephemeral containers. Kubernetes clusters are only affected if the ImagePolicyWebhook admission plugin is used together with ephemeral containers.

(CVE-2023-2727)

Users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using ephemeral containers. The policy ensures pods running with a service account may only reference secrets specified in the service account’s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the kubernetes.io/enforce-mountable-secrets annotation are used together with ephemeral containers.

(CVE-2023-2728)

Container cluster management.

Security Fix(es):

Users authorized to list or watch one type of namespaced custom resource cluster-wide can read custom resources of a different type in the same API group without authorization. Clusters are impacted by this vulnerability if all of the following are true: 1. There are 2+ CustomResourceDefinitions sharing the same API group 2. Users have cluster-wide list or watch authorization on one of those custom resources. 3. The same users are not authorized to read another custom resource in the same API group.(CVE-2022-3162)

Users may have access to secure endpoints in the control plane network. Kubernetes clusters are only affected if an untrusted user can modify Node objects and send proxy requests to them. Kubernetes supports node proxying, which allows clients of kube-apiserver to access endpoints of a Kubelet to establish connections to Pods, retrieve container logs, and more. While Kubernetes already validates the proxying address for Nodes, a bug in kube-apiserver made it possible to bypass this validation. Bypassing this validation could allow authenticated requests destined for Nodes to to the API server's private network.(CVE-2022-3294)

A security issue was discovered in Kubelet that allows pods to bypass the seccomp profile enforcement. Pods that use localhost type for seccomp profile but specify an empty profile field, are affected by this issue. In this scenario, this vulnerability allows the pod to run in unconfined (seccomp disabled) mode. This bug affects Kubelet.(CVE-2023-2431)

Users may be able to launch containers using images that are restricted by ImagePolicyWebhook when using ephemeral containers. Kubernetes clusters are only affected if the ImagePolicyWebhook admission plugin is used together with ephemeral containers.

(CVE-2023-2727)

Users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using ephemeral containers. The policy ensures pods running with a service account may only reference secrets specified in the service account’s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the kubernetes.io/enforce-mountable-secrets annotation are used together with ephemeral containers.

(CVE-2023-2728)

Users may be able to launch containers using images that are restricted by ImagePolicyWebhook when using ephemeral containers. Kubernetes clusters are only affected if the ImagePolicyWebhook admission plugin is used together with ephemeral containers.

Vulnerable to policy bypass in kube-apiserver in k8s.io/kubernetes

These are all security issues fixed in the kubernetes1.23-apiserver-1.23.17-4.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the kubernetes1.24-apiserver-1.24.15-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the govulncheck-vulndb-0.0.20250807T150727-1.1 package on the GA media of openSUSE Tumbleweed.

This update for kubernetes1.18 fixes the following issues:

• CVE-2023-2727: Fixed bypassing policies imposed by the ImagePolicyWebhook admission plugin (bsc#1211630).
• CVE-2023-2728: Fixed bypassing enforce mountable secrets policy imposed by the ServiceAccount admission plugin (bsc#1211631).

This update for kubernetes1.23 fixes the following issues:

• CVE-2023-2727: Fixed bypassing policies imposed by the ImagePolicyWebhook admission plugin (bsc#1211630).
• CVE-2023-2728: Fixed bypassing enforce mountable secrets policy imposed by the ServiceAccount admission plugin (bsc#1211631).

This update for kubernetes1.23 fixes the following issues:

• CVE-2023-2727: Fixed bypassing policies imposed by the ImagePolicyWebhook admission plugin (bsc#1211630).
• CVE-2023-2728: Fixed bypassing enforce mountable secrets policy imposed by the ServiceAccount admission plugin (bsc#1211631).

This update for kubernetes1.24 fixes the following issues:

• CVE-2023-2727: Fixed bypassing policies imposed by the ImagePolicyWebhook admission plugin (bsc#1211630).
• CVE-2023-2728: Fixed bypassing enforce mountable secrets policy imposed by the ServiceAccount admission plugin (bsc#1211631).

This update for kubernetes1.24 fixes the following issues:

Update to version 1.24.16:

• CVE-2023-2727: Fixed bypassing policies imposed by the ImagePolicyWebhook admission plugin(bsc#1211630).
• CVE-2023-2728: Fixed bypassing enforce mountable secrets policy imposed by the ServiceAccount admission plugin (bsc#1211631).

This update for kubernetes1.23 fixes the following issues:

• CVE-2021-25743: escape, meta and control sequences in raw data output to terminal not neutralized. (bsc#1194400)
• CVE-2023-2727: bypass of policies imposed by the ImagePolicyWebhook admission plugin. (bsc#1211630)
• CVE-2023-2728: bypass of the mountable secrets policy enforced by the ServiceAccount admission plugin. (bsc#1211631)
• CVE-2023-39325: go1.20: excessive resource consumption when dealing with rapid stream resets. (bsc#1229869)
• CVE-2023-44487: google.golang.org/grpc, kube-apiserver: HTTP/2 rapid reset vulnerability. (bsc#1229869)
• CVE-2023-45288: golang.org/x/net: excessive CPU consumption when processing unlimited sets of headers. (bsc#1229869)
• CVE-2024-0793: kube-controller-manager pod crash when processing malformed HPA v1 manifests. (bsc#1219964)
• CVE-2024-3177: bypass of the mountable secrets policy enforced by the ServiceAccount admission plugin. (bsc#1222539)
• CVE-2024-24786: github.com/golang/protobuf: infinite loop when unmarshaling invalid JSON. (bsc#1229867)

Bug fixes:

• Use -trimpath in non-DBG mode for reproducible builds. (bsc#1062303)
• Fix multiple issues for successful kubeadm init run. (bsc#1214406)
• Update go to version 1.22.5 in build requirements. (bsc#1229858)

This update for kubernetes1.24 fixes the following issues:

• CVE-2021-25743: escape, meta and control sequences in raw data output to terminal not neutralized. (bsc#1194400)
• CVE-2023-2727: bypass of policies imposed by the ImagePolicyWebhook admission plugin. (bsc#1211630)
• CVE-2023-2728: bypass of the mountable secrets policy enforced by the ServiceAccount admission plugin. (bsc#1211631)
• CVE-2023-39325: go1.20: excessive resource consumption when dealing with rapid stream resets. (bsc#1229869)
• CVE-2023-44487: google.golang.org/grpc, kube-apiserver: HTTP/2 rapid reset vulnerability. (bsc#1229869)
• CVE-2023-45288: golang.org/x/net: excessive CPU consumption when processing unlimited sets of headers. (bsc#1229869)
• CVE-2024-0793: kube-controller-manager pod crash when processing malformed HPA v1 manifests. (bsc#1219964)
• CVE-2024-3177: bypass of the mountable secrets policy enforced by the ServiceAccount admission plugin. (bsc#1222539)
• CVE-2024-24786: github.com/golang/protobuf: infinite loop when unmarshaling invalid JSON. (bsc#1229867)

Bug fixes:

• Use -trimpath in non-DBG mode for reproducible builds. (bsc#1062303)
• Fix multiple issues for successful kubeadm init run. (bsc#1214406)
• Update go to version 1.22.5 in build requirements. (bsc#1229858)