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Fencer Intel
high 7.7

CVE-2024-0793 json

Kube-controller-manager: malformed hpa v1 manifest causes crash

published last yr. modified last mo. also GHSA-h7wq-jj8r-qm7p , GO-2024-3277 , EUVD-2024-3260

cvss
7.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

A flaw was found in kube-controller-manager. This issue occurs when the initial application of a HPA config YAML lacking a .spec.behavior.scaleUp block causes a denial of service due to KCM pods going into restart churn.

Patch / fix

  • go k8s.io/kubernetes 1.27.0-alpha.1
  • Red Hat Red Hat OpenShift Container Platform 4.12 0:4.12.0-202403042037.p0.g9946c63.assembly.stream.el9
  • openshift openshift 4.12 4.12.0-202403042037.p0.g9946c63.assembly.stream.el8
  • openshift openshift 4.12 4.12.0-202403042037.p0.g9946c63.assembly.stream.el9
  • openshift-hyperkube openshift 4.12 4.12.0-202403042037.p0.g9946c63.assembly.stream.el8
  • openshift-hyperkube openshift 4.12 4.12.0-202403042037.p0.g9946c63.assembly.stream.el9

red hat advisories RHSA-2024:1267

  • kubernetes1.23 SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES 15 SP4-LTSS +5 more 1.23.17-150300.7.12.1
  • kubernetes1.24 SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE High Performance Computing 15 SP3-LTSS +1 more 1.24.17-150300.7.6.1
  • kubernetes1.24 SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS +1 more 1.24.17-150400.9.16.1
  • kubernetes1.26 SLE Module for Containers 15 SP6, SLE Module for Containers 15 SP5, openSUSE Leap 15.5 1.26.14-150400.9.6.1
  • kubernetes1.25 SLE Module for Containers 15 SP5, openSUSE Leap 15.5 1.25.16-150400.9.6.1
  • kubernetes1.24 SLE Module for Containers 15 SP5, openSUSE Leap 15.5 1.24.17-150500.3.13.1
  • kubernetes1.23 SLE Module for Containers 15 SP5, openSUSE Leap 15.5 1.23.17-150500.3.9.1

suse advisories SUSE-SU-2025:02423-2SUSE-SU-2024:3343-1SUSE-SU-2024:3341-1SUSE-SU-2024:1166-2SUSE-SU-2024:1166-1SUSE-SU-2024:1165-1

  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20241119T173509-1.1
  • kubernetes1.26 openSUSE Tumbleweed 1.26.14-1.1

opensuse advisories openSUSE-SU-2024:14513-1openSUSE-SU-2024:13718-1

Is CVE-2024-0793 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-0793 updated cvss 7.7

kube-controller-manager: malformed HPA v1 manifest causes crash

  • Red Hat OpenShift Container Platform 4.12 openshift 4.12.0-202403042037.p0.g9946c63.assembly.stream.el8, openshift 4.12.0-202403042037.p0.g9946c63.assembly.stream.el9, openshift-hyperkube 4.12.0-202403042037.p0.g9946c63.assembly.stream.el8, openshift-hyperkube 4.12.0-202403042037.p0.g9946c63.assembly.stream.el9
    fixed: vendor fix RHSA-2024:1267
  • Red Hat OpenShift Container Platform 4.13 openshift4/ose-cluster-kube-controller-manager-operator v4.13.0-202402011837.p0.gdac7113.assembly.stream
    fixed: vendor fix RHSA-2024:0741
  • Red Hat OpenShift Container Platform 4 microshift, microshift-olm, microshift-sriov, microshift-multus, microshift-selinux, microshift-greenboot, +13 more Red Hat OpenShift Container Platform 4.12 perf 4.18.0-372.96.1.el8_6, kernel 4.18.0-372.96.1.el8_6, bpftool 4.18.0-372.96.1.el8_6, kernel-core 4.18.0-372.96.1.el8_6, kernel-tools 4.18.0-372.96.1.el8_6, python3-perf 4.18.0-372.96.1.el8_6, +33 more Red Hat OpenShift Container Platform 4.13 rhcos 413.92.202402060605-0, openshift4/ose-cli v4.13.0-202402011837.p0.g7780c37.assembly.stream, openshift4/ose-pod v4.13.0-202402060538.p0.g8f85140.assembly.stream, openshift4/ose-coredns v4.13.0-202402020908.p0.g298d919.assembly.stream, openshift4/ose-deployer v4.13.0-202402011837.p0.g7780c37.assembly.stream, openshift4/ose-hyperkube v4.13.0-202402060538.p0.g8f85140.assembly.stream, +171 more Red Hat OpenShift Container Platform 5 microshift Red Hat OpenShift GitOps openshift-gitops-1/argo-rollouts-rhel8
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 7.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
GitHub 3.1 7.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
go k8s.io/kubernetes
<1.27.0-alpha.1
1.27.0-alpha.1

Affected products

  • Red Hat Red Hat OpenShift Container Platform 4
  • Red Hat Red Hat OpenShift Container Platform 4.12

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-476 NULL Pointer Dereference
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.