CVE-2022-31079: CWE-400: Uncontrolled Resource Consumption in kubeedge kubeedge
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, the Cloud Stream server and the Edge Stream server reads the entire message into memory without imposing a limit on the size of this message. An attacker can exploit this by sending a large message to exhaust memory and cause a DoS. The Cloud Stream server and the Edge Stream server are under DoS attack in this case. The consequence of the exhaustion is that the CloudCore and EdgeCore will be in a denial of service. Only an authenticated user can cause this issue. It will be affected only when users enable `cloudStream` module in the config file `cloudcore.yaml` and enable `edgeStream` module in the config file `edgecore.yaml`. This bug has been fixed in Kubeedge 1.11.1, 1.10.2, and 1.9.4. As a workaround, disable cloudStream module in the config file `cloudcore.yaml` and disable edgeStream module in the config file `edgecore.yaml`.
AI Analysis
Technical Summary
CVE-2022-31079 is a medium-severity vulnerability affecting KubeEdge, an open-source platform designed to extend containerized application orchestration to edge computing environments. The vulnerability arises from uncontrolled resource consumption (CWE-400) in the Cloud Stream server and the Edge Stream server components of KubeEdge. Specifically, prior to versions 1.11.1, 1.10.2, and 1.9.4, these servers read incoming messages entirely into memory without enforcing any size limits. This lack of input size validation allows an authenticated attacker to send excessively large messages, leading to memory exhaustion. The consequence is a denial-of-service (DoS) condition where both CloudCore and EdgeCore components become unresponsive or crash due to resource depletion. Exploitation requires that the `cloudStream` module be enabled in the `cloudcore.yaml` configuration file and the `edgeStream` module be enabled in the `edgecore.yaml` configuration file, which are not enabled by default. The vulnerability has been addressed in KubeEdge versions 1.11.1, 1.10.2, and 1.9.4 by implementing proper message size limits. As a temporary mitigation, disabling the affected modules prevents exploitation. No known exploits have been reported in the wild to date. This vulnerability impacts the availability of KubeEdge components, potentially disrupting edge computing workloads dependent on this platform.
Potential Impact
For European organizations leveraging KubeEdge to manage edge computing infrastructure—commonly found in industries such as manufacturing, telecommunications, and smart city deployments—this vulnerability poses a risk of service disruption. A successful attack could incapacitate edge nodes and cloud components responsible for orchestrating containerized applications, leading to downtime, degraded operational efficiency, and potential cascading failures in critical industrial or IoT systems. Given that edge computing often supports latency-sensitive and mission-critical applications, even temporary denial of service can have significant operational and financial consequences. Furthermore, since exploitation requires authentication, insider threats or compromised credentials could be leveraged to trigger the DoS, raising concerns about internal security controls. The impact is primarily on availability, with no direct confidentiality or integrity compromise reported. However, prolonged outages could indirectly affect data processing and system reliability.
Mitigation Recommendations
1. Upgrade KubeEdge installations to versions 1.11.1, 1.10.2, or 1.9.4 or later, where the vulnerability is patched. 2. If immediate upgrading is not feasible, disable the `cloudStream` module in `cloudcore.yaml` and the `edgeStream` module in `edgecore.yaml` to prevent exploitation. 3. Implement strict access controls and monitoring around authenticated users who can interact with these modules to reduce the risk of insider threats or credential misuse. 4. Employ network-level protections such as rate limiting and message size filtering on ingress points to edge and cloud components to detect and block anomalously large messages. 5. Regularly audit and monitor logs for unusual message sizes or resource consumption spikes indicative of attempted exploitation. 6. Incorporate anomaly detection tools tailored for edge environments to identify early signs of resource exhaustion attacks. 7. Ensure robust credential management and multi-factor authentication to limit unauthorized access to KubeEdge management interfaces.
Affected Countries
Germany, France, United Kingdom, Netherlands, Italy, Spain, Sweden, Finland
CVE-2022-31079: CWE-400: Uncontrolled Resource Consumption in kubeedge kubeedge
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, the Cloud Stream server and the Edge Stream server reads the entire message into memory without imposing a limit on the size of this message. An attacker can exploit this by sending a large message to exhaust memory and cause a DoS. The Cloud Stream server and the Edge Stream server are under DoS attack in this case. The consequence of the exhaustion is that the CloudCore and EdgeCore will be in a denial of service. Only an authenticated user can cause this issue. It will be affected only when users enable `cloudStream` module in the config file `cloudcore.yaml` and enable `edgeStream` module in the config file `edgecore.yaml`. This bug has been fixed in Kubeedge 1.11.1, 1.10.2, and 1.9.4. As a workaround, disable cloudStream module in the config file `cloudcore.yaml` and disable edgeStream module in the config file `edgecore.yaml`.
AI-Powered Analysis
Technical Analysis
CVE-2022-31079 is a medium-severity vulnerability affecting KubeEdge, an open-source platform designed to extend containerized application orchestration to edge computing environments. The vulnerability arises from uncontrolled resource consumption (CWE-400) in the Cloud Stream server and the Edge Stream server components of KubeEdge. Specifically, prior to versions 1.11.1, 1.10.2, and 1.9.4, these servers read incoming messages entirely into memory without enforcing any size limits. This lack of input size validation allows an authenticated attacker to send excessively large messages, leading to memory exhaustion. The consequence is a denial-of-service (DoS) condition where both CloudCore and EdgeCore components become unresponsive or crash due to resource depletion. Exploitation requires that the `cloudStream` module be enabled in the `cloudcore.yaml` configuration file and the `edgeStream` module be enabled in the `edgecore.yaml` configuration file, which are not enabled by default. The vulnerability has been addressed in KubeEdge versions 1.11.1, 1.10.2, and 1.9.4 by implementing proper message size limits. As a temporary mitigation, disabling the affected modules prevents exploitation. No known exploits have been reported in the wild to date. This vulnerability impacts the availability of KubeEdge components, potentially disrupting edge computing workloads dependent on this platform.
Potential Impact
For European organizations leveraging KubeEdge to manage edge computing infrastructure—commonly found in industries such as manufacturing, telecommunications, and smart city deployments—this vulnerability poses a risk of service disruption. A successful attack could incapacitate edge nodes and cloud components responsible for orchestrating containerized applications, leading to downtime, degraded operational efficiency, and potential cascading failures in critical industrial or IoT systems. Given that edge computing often supports latency-sensitive and mission-critical applications, even temporary denial of service can have significant operational and financial consequences. Furthermore, since exploitation requires authentication, insider threats or compromised credentials could be leveraged to trigger the DoS, raising concerns about internal security controls. The impact is primarily on availability, with no direct confidentiality or integrity compromise reported. However, prolonged outages could indirectly affect data processing and system reliability.
Mitigation Recommendations
1. Upgrade KubeEdge installations to versions 1.11.1, 1.10.2, or 1.9.4 or later, where the vulnerability is patched. 2. If immediate upgrading is not feasible, disable the `cloudStream` module in `cloudcore.yaml` and the `edgeStream` module in `edgecore.yaml` to prevent exploitation. 3. Implement strict access controls and monitoring around authenticated users who can interact with these modules to reduce the risk of insider threats or credential misuse. 4. Employ network-level protections such as rate limiting and message size filtering on ingress points to edge and cloud components to detect and block anomalously large messages. 5. Regularly audit and monitor logs for unusual message sizes or resource consumption spikes indicative of attempted exploitation. 6. Incorporate anomaly detection tools tailored for edge environments to identify early signs of resource exhaustion attacks. 7. Ensure robust credential management and multi-factor authentication to limit unauthorized access to KubeEdge management interfaces.
Affected Countries
For access to advanced analysis and higher rate limits, contact root@offseq.com
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2022-05-18T00:00:00.000Z
- Cisa Enriched
- true
Threat ID: 682d9844c4522896dcbf3625
Added to database: 5/21/2025, 9:09:24 AM
Last enriched: 6/23/2025, 3:50:08 AM
Last updated: 7/31/2025, 10:25:18 PM
Views: 12
Related Threats
CVE-2025-9091: Hard-coded Credentials in Tenda AC20
LowCVE-2025-9090: Command Injection in Tenda AC20
MediumCVE-2025-9092: CWE-400 Uncontrolled Resource Consumption in Legion of the Bouncy Castle Inc. Bouncy Castle for Java - BC-FJA 2.1.0
LowCVE-2025-9089: Stack-based Buffer Overflow in Tenda AC20
HighCVE-2025-9088: Stack-based Buffer Overflow in Tenda AC20
HighActions
Updates to AI analysis are available only with a Pro account. Contact root@offseq.com for access.
External Links
Need enhanced features?
Contact root@offseq.com for Pro access with improved analysis and higher rate limits.