Vulnerability identifier: #VU30318
Vulnerability risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-400
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Kubernetes
Server applications /
Frameworks for developing and running applications
Vendor: Kubernetes
Description
The vulnerability allows a remote authenticated user to perform a denial of service (DoS) attack.
The Kubernetes API Server component in versions 1.1-1.14, and versions prior to 1.15.10, 1.16.7 and 1.17.3 allows an authorized user who sends malicious YAML payloads to cause the kube-apiserver to consume excessive CPU cycles while parsing YAML.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Kubernetes: 1.17.0 - 1.17.2
External links
http://github.com/kubernetes/kubernetes/issues/89535
http://groups.google.com/d/msg/kubernetes-announce/ALL9s73E5ck/4yHe8J-PBAAJ
http://security.netapp.com/advisory/ntap-20200413-0003/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.