CVE-2020-8552

Kubernetes API server denial of service

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The Kubernetes API server component in versions prior to 1.15.9, 1.16.0-1.16.6, and 1.17.0-1.17.2 has been found to be vulnerable to a denial of service attack via successful API requests.

Se detectó que el componente servidor de la API Kubernetes en versiones anteriores a 1.15.9, versiones 1.16.0-1.16.6 y versiones 1.17.0-1.17.2, es vulnerable a un ataque de denegación de servicio versiones por medio de unas peticiones de la API con éxito.

A denial of service vulnerability was found in the Kubernetes API server. This flaw allows a remote attacker to send repeated, crafted HTTP requests to exhaust available memory and cause a crash.

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. Issues addressed include denial of service and memory exhaustion vulnerabilities.

*Credits: Gus Lees (Amazon)

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-02-03 CVE Reserved
2020-03-27 CVE Published
2024-08-04 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption
CWE-770: Allocation of Resources Without Limits or Throttling
CWE-789: Memory Allocation with Excessive Size Value

CAPEC

References (6)

URL	Tag	Source
https://groups.google.com/forum/#%21topic/kubernetes-security-announce/2UOlsba2g0s	X_refsource_misc
https://security.netapp.com/advisory/ntap-20200413-0003	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/kubernetes/kubernetes/issues/89378	2023-11-07

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX	2023-11-07
https://access.redhat.com/security/cve/CVE-2020-8552	2020-07-27
https://bugzilla.redhat.com/show_bug.cgi?id=1797909	2020-07-27

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Kubernetes Search vendor "Kubernetes"		Kubernetes Search vendor "Kubernetes" for product "Kubernetes"				<= 1.15.9 Search vendor "Kubernetes" for product "Kubernetes" and version " <= 1.15.9"		-		Affected
Kubernetes Search vendor "Kubernetes"		Kubernetes Search vendor "Kubernetes" for product "Kubernetes"				>= 1.16.0 <= 1.16.6 Search vendor "Kubernetes" for product "Kubernetes" and version " >= 1.16.0 <= 1.16.6"		-		Affected
Kubernetes Search vendor "Kubernetes"		Kubernetes Search vendor "Kubernetes" for product "Kubernetes"				>= 1.17.0 <= 1.17.2 Search vendor "Kubernetes" for product "Kubernetes" and version " >= 1.17.0 <= 1.17.2"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				32 Search vendor "Fedoraproject" for product "Fedora" and version "32"		-		Affected