CVE-2022-31074 KubeEdge Cloud AdmissionController component DoS

What is CVE-2022-31074?

CVE-2022-31074 is a medium-severity denial of service vulnerability in kubeedge, published on 11 Jul 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

KubeEdge is an open source system for extending native containerized application orchestration capabilities to hosts at Edge. Prior to versions 1.11.1, 1.10.2, and 1.9.4, several endpoints in the Cloud AdmissionController may be susceptible to a DoS attack if an HTTP request containing a very large Body is sent to it. The consequence of the exhaustion is that the Cloud AdmissionController will be in denial of service. This bug has been fixed in Kubeedge 1.11.1, 1.10.2, and 1.9.4. There is currently no known workaround.

Weakness: CWE-400

Which versions are affected by CVE-2022-31074?

7 open source packages ship an affected version, including github.com/kubeedge/kubeedge. It affects 1 product.

Products include Linuxfoundation Kubeedge.

How do I fix CVE-2022-31074?

Upgrade github.com/kubeedge/kubeedge to a fixed version for your release line: 1.9.4, 1.10.2 or 1.11.1.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-31074 being exploited?

There is no known exploitation of CVE-2022-31074 in the wild and no public exploit code.

Other vulnerabilities in kubeedge

• CVE-2022-31073 KubeEdge Edge ServiceBus module DoS Medium 6.5
• CVE-2022-31075 KubeEdge DoS when signing the CSR from EdgeCore Medium 4.9
• CVE-2022-31078 KubeEdge CloudCore Router memory exhaustion Medium 4.4
• CVE-2022-31079 KubeEdge Cloud Stream and Edge Stream DoS from large stream message Medium 4.4
• CVE-2022-31080 KubeEdge Websocket Client in package Viaduct: DoS from large response message Medium 4.4

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-w52j-3457-q9wr, GO-2022-0508.