CVE-2024-12401

Cert-manager: potential dos when parsing specially crafted pem inputs

Description

A flaw was found in the cert-manager package. This flaw allows an attacker who can modify PEM data that the cert-manager reads, for example, in a Secret resource, to use large amounts of CPU in the cert-manager controller pod to effectively create a denial-of-service (DoS) vector for the cert-manager in the cluster.

Category

4.4
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.27%
Affected: Red Hat cert-manager Operator for Red Hat OpenShift
Affected: Red Hat cert-manager Operator for Red Hat OpenShift
Affected: Red Hat cert-manager Operator for Red Hat OpenShift
Affected: Red Hat cert-manager Operator for Red Hat OpenShift
Affected: Red Hat Cryostat 3
Affected: Red Hat Multicluster Engine for Kubernetes
Affected: Red Hat Multicluster Engine for Kubernetes
Affected: Red Hat OpenShift Serverless
Affected: Red Hat OpenShift Serverless
Affected: Red Hat OpenShift Serverless
Affected: Red Hat OpenShift Serverless
Affected: Red Hat OpenShift Serverless
Affected: Red Hat OpenShift Serverless
Affected: Red Hat OpenShift Serverless
Affected: Red Hat Red Hat Connectivity Link 1
Affected: Red Hat Red Hat Connectivity Link 1
Affected: Red Hat Red Hat OpenShift Container Platform 4
Affected: Red Hat Red Hat OpenShift Container Platform 4
Affected: Red Hat Red Hat Openshift Data Foundation 4
Affected: Red Hat Red Hat OpenShift GitOps
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/security/cve/CVE-2024-12401 vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2327929 issue tracking
https://github.com/cert-manager/cert-manager/pull/7400
https://github.com/cert-manager/cert-manager/pull/7401
https://github.com/cert-manager/cert-manager/pull/7402
https://github.com/cert-manager/cert-manager/pull/7403
https://github.com/cert-manager/cert-manager/security/advisories/GHSA-r4pg-vg54-wxx4
https://go.dev/issue/50116

Frequently Asked Questions

What is the severity of CVE-2024-12401?
CVE-2024-12401 has been scored as a medium severity vulnerability.
How to fix CVE-2024-12401?
To fix CVE-2024-12401, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-12401 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-12401 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-2024-12401?
CVE-2024-12401 affects Red Hat cert-manager Operator for Red Hat OpenShift, Red Hat cert-manager Operator for Red Hat OpenShift, Red Hat cert-manager Operator for Red Hat OpenShift, Red Hat cert-manager Operator for Red Hat OpenShift, Red Hat Cryostat 3, Red Hat Multicluster Engine for Kubernetes, Red Hat Multicluster Engine for Kubernetes, Red Hat OpenShift Serverless, Red Hat OpenShift Serverless, Red Hat OpenShift Serverless, Red Hat OpenShift Serverless, Red Hat OpenShift Serverless, Red Hat OpenShift Serverless, Red Hat OpenShift Serverless, Red Hat Red Hat Connectivity Link 1, Red Hat Red Hat Connectivity Link 1, Red Hat Red Hat OpenShift Container Platform 4, Red Hat Red Hat OpenShift Container Platform 4, Red Hat Red Hat Openshift Data Foundation 4, Red Hat Red Hat OpenShift GitOps.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.