Summary
KubeEdge Edge ServiceBus module DoS
Workarounds
Disable the ServiceBus module in the config file edgecore.yaml.
References
NA
Credits
Thanks David Korczynski and Adam Korczynski of ADA Logics for responsibly disclosing this issue in accordance with the kubeedge security policy during a security audit sponsored by CNCF and facilitated by OSTIF.
For more information
If you have any questions or comments about this advisory:
- Open an issue in KubeEdge repo
- To make a vulnerability report, email your vulnerability to the private [email protected] list with the security details and the details expected for KubeEdge bug reports.
Impact
The ServiceBus server on the edge side may be susceptible to a DoS attack if an HTTP request containing a very large Body is sent to it.
It is possible for the node to be exhausted of memory. The consequence of the exhaustion is that other services on the node, e.g. other containers, will be unable to allocate memory and thus causing a denial of service.
Malicious Apps which by accident pulled by users on the host and have the access to send HTTP requests to localhost may make an attack. It will be affected only when users enable the ServiceBus module in the config file edgecore.yaml as below:
modules:
...
serviceBus:
enable: true
Crafted input forces the application to consume excessive CPU, memory, or other resources, degrading or denying service. Typical impact: denial of service.
CVE-2022-31073 has a CVSS score of 6.5 (Medium). The vector is reachable from an adjacent network, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (1.11.1, 1.10.2, 1.9.4); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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This bug has been fixed in Kubeedge 1.11.1, 1.10.2, 1.9.4. Users should update to these versions to resolve the issue.
Frequently Asked Questions
- What is CVE-2022-31073? CVE-2022-31073 is a medium-severity uncontrolled resource consumption vulnerability in github.com/kubeedge/kubeedge (go), affecting versions >= 1.11.0, < 1.11.1. It is fixed in 1.11.1, 1.10.2, 1.9.4. Crafted input forces the application to consume excessive CPU, memory, or other resources, degrading or denying service.
- How severe is CVE-2022-31073? CVE-2022-31073 has a CVSS score of 6.5 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of github.com/kubeedge/kubeedge are affected by CVE-2022-31073? github.com/kubeedge/kubeedge (go) versions >= 1.11.0, < 1.11.1 is affected.
- Is there a fix for CVE-2022-31073? Yes. CVE-2022-31073 is fixed in 1.11.1, 1.10.2, 1.9.4. Upgrade to this version or later.
- Is CVE-2022-31073 exploitable, and should I be worried? Whether CVE-2022-31073 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2022-31073 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2022-31073?
- Upgrade
github.com/kubeedge/kubeedgeto 1.11.1 or later - Upgrade
github.com/kubeedge/kubeedgeto 1.10.2 or later - Upgrade
github.com/kubeedge/kubeedgeto 1.9.4 or later
- Upgrade