CVE-2023-2431

Bypass of seccomp profile enforcement

Description

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.

Remediation

Solution:

  • To mitigate these vulnerabilities, upgrade Kubelet: https://kubernetes.io/docs/tasks/administer-cluster/cluster-upgrade/ https://kubernetes.io/docs/tasks/administer-cluster/cluster-upgrade/

Category

3.4
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.01%
Affected: Kubernetes Kubernetes
Published at:
Updated at:

References

Link Tags
https://groups.google.com/g/kubernetes-security-announce/c/QHmx0HOQa10 mailing list
https://github.com/kubernetes/kubernetes/issues/118690 issue tracking
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XBX4RL4UOC7JHWWYB2AJCKSUM7EG5Y5G/ mailing list
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/43HDSKBKPSW53OW647B5ETHRWFFNHSRQ/

Frequently Asked Questions

What is the severity of CVE-2023-2431?
CVE-2023-2431 has been scored as a low severity vulnerability.
How to fix CVE-2023-2431?
To fix CVE-2023-2431: To mitigate these vulnerabilities, upgrade Kubelet: https://kubernetes.io/docs/tasks/administer-cluster/cluster-upgrade/ https://kubernetes.io/docs/tasks/administer-cluster/cluster-upgrade/
Is CVE-2023-2431 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-2431 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-2431?
CVE-2023-2431 affects Kubernetes Kubernetes.
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