Vulnerability · Published Nov 17, 2024 · Assigned by redhat
CVE-2024-0793Kube-controller-manager: malformed hpa v1 manifest causes crash
High 7.7
In plain English
A high-severity improper input validation in kube-controller-manager. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.7High
Exploit odds (30 days)0.6%top 51.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | k8s.io/kubernetes | 1.27.0-alpha.1 | GHSA-h7wq-jj8r-qm7p |
| Go | k8s.io/kubernetes | 1.27.0-alpha.1 | GO-2024-3277 |
Affected products (as reported)
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
References
- RHSA-2024:0741 vendor-advisory, x_refsource_REDHAT
- RHSA-2024:1267 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2024-0793 vdb-entry, x_refsource_REDHAT
- RHBZ#2214402 issue-tracking, x_refsource_REDHAT
- https://github.com/openshift/kubernetes/pull/1876