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CVE-2024-12401Withdrawn

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

CVSS 3.1 4.4 MEDIUMEUVD CVSS 3.1 4.4 CVSS 3.1 · [email protected] · Secondary 4.4 MEDIUMCVSS_V3 Publisher rating MODERATEFixed by github.com/cert-manager/cert-manager 1.12.14Fixed by github.com/cert-manager/cert-manager 1.15.4Fixed by github.com/cert-manager/cert-manager 1.16.2CVSS_V4 Publisher rating MODERATEFixed by github.com/cert-manager/cert-manager 1.12.14Fixed by github.com/cert-manager/cert-manager 1.15.4Fixed by github.com/cert-manager/cert-manager 1.16.2osv · severity unknownFixed by github.com/cert-manager/cert-manager 1.12.14Fixed by github.com/cert-manager/cert-manager 1.15.4Fixed by github.com/cert-manager/cert-manager 1.16.2KEV status unknown
Original advisory

cve-program · CVE-2024-12401

Published

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.

Read the publisher's advisory

euvd · EUVD-2024-3471

Published

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.

Read the publisher's advisory

nvd · CVE-2024-12401

Published

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.

Read the publisher's advisory

osv · GHSA-ghw8-3xqw-hhcj

Withdrawn

# Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-r4pg-vg54-wxx4. This link is maintained to preserve external references. # Original 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.

Read the publisher's advisory

osv · GHSA-r4pg-vg54-wxx4

Published

### Impact cert-manager packages which call the standard library `pem.Decode()` function can take a long time to process specially crafted invalid PEM data. If an attacker is able to modify PEM data which cert-manager reads (e.g. in a Secret resource), they may be able to use large amounts of CPU in the cert-manager controller pod to effectively create a denial-of-service (DoS) vector for cert-manager in the cluster. Secrets are limited in size to [1MiB](https://kubernetes.io/docs/concepts/configuration/secret/#restriction-data-size), which reduces the impact of this issue; it was discovered through an ~856kB fuzz test input which causes `pem.Decode` to take roughly 750ms to reject the input on an M2 Max Macbook Pro. By way of comparison, a valid PEM-encoded 4096-bit RSA key takes roughly 70µs to parse on the same machine. Given the required size of PEM data needed to present a realistic DoS vector, an attacker would need to create or insert many different large sized resources in the cluster, and so the best secondary defense is to ensure that sensible limits are placed via RBAC. This issue affects all versions of cert-manager to have been released since at least v0.1.0 (since `pem.Decode` is core functionality for cert-manager). All [supported releases](https://cert-manager.io/docs/releases/) are patched. ### Patches The fixed versions are v1.16.2, v1.15.4 and v1.12.14. - master branch: https://github.com/cert-manager/cert-manager/pull/7400 - release-1.16 branch: https://github.com/cert-manager/cert-manager/pull/7401 - release-1.15 branch: https://github.com/cert-manager/cert-manager/pull/7402 - release-1.12 branch: https://github.com/cert-manager/cert-manager/pull/7403 ### Workarounds Ensure that RBAC is scoped correctly in your cluster. If a user is able to modify resources containing PEM data to be able to exploit this, it's like that those permissions are a bigger security threat than this issue - especially for Secret resources. ### References - Upstream issue: https://github.com/golang/go/issues/50116 - Similar issue: https://github.com/sigstore/sigstore/issues/198 - Google OSSFuzz: https://issues.oss-fuzz.com/issues/376728466

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osv · GO-2024-3282

Published

Potential slowdown / DoS when parsing specially crafted PEM inputs in github.com/cert-manager/cert-manager

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2024-12401

Published

cert-manager

https://github.com/cert-manager/cert-manager

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "versionType": "semver",
                            "lessThanOrEqual": "1.12.14"
                        },
                        {
                            "status": "affected",
                            "version": "1.13.0-alpha.0",
                            "versionType": "semver",
                            "lessThanOrEqual": "1.15.4"
                        },
                        {
                            "status": "affected",
                            "version": "1.16.0-alpha.0",
                            "versionType": "semver",
                            "lessThanOrEqual": "1.16.2"
                        }
                    ],
                    "packageName": "cert-manager",
                    "collectionURL": "https://github.com/cert-manager/cert-manager",
                    "defaultStatus": "unaffected"
                }

cert-manager/jetstack-cert-manager-acmesolver-rhel9

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "cert-manager Operator for Red Hat OpenShift",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "cert-manager/jetstack-cert-manager-acmesolver-rhel9",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:cert_manager:1"
                    ]
                }

cert-manager/jetstack-cert-manager-rhel9

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "cert-manager Operator for Red Hat OpenShift",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "cert-manager/jetstack-cert-manager-rhel9",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:cert_manager:1"
                    ]
                }

cert-manager-operator-bundle-container

https://catalog.redhat.com/software/containers/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "cert-manager Operator for Red Hat OpenShift",
                    "collectionURL": "https://catalog.redhat.com/software/containers/",
                    "packageName": "cert-manager-operator-bundle-container",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:cert_manager:1"
                    ]
                }

cert-manager-operator-container

https://catalog.redhat.com/software/containers/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "cert-manager Operator for Red Hat OpenShift",
                    "collectionURL": "https://catalog.redhat.com/software/containers/",
                    "packageName": "cert-manager-operator-container",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:cert_manager:1"
                    ]
                }

cryostat-tech-preview/cryostat-rhel8-operator

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Cryostat 3",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "cryostat-tech-preview/cryostat-rhel8-operator",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:cryostat:3"
                    ]
                }

multicluster-engine/assisted-service-8-rhel8

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Multicluster Engine for Kubernetes",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "multicluster-engine/assisted-service-8-rhel8",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:multicluster_engine"
                    ]
                }

multicluster-engine/assisted-service-9-rhel9

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Multicluster Engine for Kubernetes",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "multicluster-engine/assisted-service-9-rhel9",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:multicluster_engine"
                    ]
                }

openshift-serverless-1/serving-activator-rhel8

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "OpenShift Serverless",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift-serverless-1/serving-activator-rhel8",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:serverless:1"
                    ]
                }

openshift-serverless-1/serving-autoscaler-hpa-rhel8

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "OpenShift Serverless",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift-serverless-1/serving-autoscaler-hpa-rhel8",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:serverless:1"
                    ]
                }

openshift-serverless-1/serving-autoscaler-rhel8

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "OpenShift Serverless",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift-serverless-1/serving-autoscaler-rhel8",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:serverless:1"
                    ]
                }

openshift-serverless-1/serving-controller-rhel8

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "OpenShift Serverless",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift-serverless-1/serving-controller-rhel8",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:serverless:1"
                    ]
                }

openshift-serverless-1/serving-queue-rhel8

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "OpenShift Serverless",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift-serverless-1/serving-queue-rhel8",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:serverless:1"
                    ]
                }

openshift-serverless-1/serving-storage-version-migration-rhel8

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "OpenShift Serverless",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift-serverless-1/serving-storage-version-migration-rhel8",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:serverless:1"
                    ]
                }

openshift-serverless-1/serving-webhook-rhel8

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "OpenShift Serverless",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift-serverless-1/serving-webhook-rhel8",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:serverless:1"
                    ]
                }

rhcl-operator-bundle-container

https://catalog.redhat.com/software/containers/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Connectivity Link 1",
                    "collectionURL": "https://catalog.redhat.com/software/containers/",
                    "packageName": "rhcl-operator-bundle-container",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:connectivity_link:1"
                    ]
                }

rhcl-operator-container

https://catalog.redhat.com/software/containers/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Connectivity Link 1",
                    "collectionURL": "https://catalog.redhat.com/software/containers/",
                    "packageName": "rhcl-operator-container",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:connectivity_link:1"
                    ]
                }

openshift4/ose-agent-installer-api-server-rhel9

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat OpenShift Container Platform 4",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift4/ose-agent-installer-api-server-rhel9",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:openshift:4"
                    ]
                }

openshift4/ose-contour-rhel8

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat OpenShift Container Platform 4",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift4/ose-contour-rhel8",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:openshift:4"
                    ]
                }

odf4/rook-ceph-rhel8-operator

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Openshift Data Foundation 4",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "odf4/rook-ceph-rhel8-operator",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:openshift_data_foundation:4"
                    ]
                }

openshift-gitops-1/gitops-rhel8-operator

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat OpenShift GitOps",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "openshift-gitops-1/gitops-rhel8-operator",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:openshift_gitops:1"
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2024-3471

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Dec 12, 2024, 9:06:03 AM

dateUpdated: Jun 26, 2026, 4:27:26 AM

2 related source bulletins · separate from aliases

msrc_CVE-2024-12401: Cert-manager: potential dos when parsing specially crafted pem inputs

CVE-2024-12401

openSUSE-SU-2024:14599-1: govulncheck-vulndb-0.0.20241213T205935-1.1 on GA media

CVE-2020-10696 · CVE-2020-8912 · CVE-2022-31668 · CVE-2023-26248 · CVE-2023-3676 · CVE-2023-3955 · CVE-2024-12401 · CVE-2024-37032 · CVE-2024-44337 · CVE-2024-45039 · CVE-2024-45337 · CVE-2024-45436 · CVE-2024-46455 · CVE-2024-46528 · CVE-2024-53257 · CVE-2024-53859 · CVE-2024-55601 · CVE-2024-55657 · CVE-2024-55658 · CVE-2024-55659 · CVE-2024-55660

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2024-12401

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Deferred

Weakness classifications: CWE-20

Original publisher date fields

published: 2024-12-12T09:15:05.790

lastModified: 2026-06-26T05:16:25.573

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-ghw8-3xqw-hhcj

Withdrawn

github.com/cert-manager/cert-manager

Go

SEMVER · introduced 0 → fixed 1.12.14

github.com/cert-manager/cert-manager

Go

SEMVER · introduced 1.13.0-alpha.0 → fixed 1.15.4

github.com/cert-manager/cert-manager

Go

SEMVER · introduced 1.16.0-alpha.0 → fixed 1.16.2

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-r4pg-vg54-wxx4

Published

github.com/cert-manager/cert-manager

Go

SEMVER · introduced 0 → fixed 1.12.14

github.com/cert-manager/cert-manager

Go

SEMVER · introduced 1.13.0-alpha.0 → fixed 1.15.4

github.com/cert-manager/cert-manager

Go

SEMVER · introduced 1.16.0-alpha.0 → fixed 1.16.2

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GO-2024-3282

Published

github.com/cert-manager/cert-manager

Go

SEMVER · introduced 0 → fixed 1.12.14 → introduced 1.13.0-alpha.0 → fixed 1.15.4 → introduced 1.16.0-alpha.0 → fixed 1.16.2

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

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