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CVE-2022-31080— KubeEdge Websocket Client in package Viaduct: DoS from large response message

Quick assessment

Affected
kubeedge kubeedge
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

KubeEdge是KubeEdge开源的一个 Kubernetes 原生边缘计算框架。基于 Kubernetes 构建，并将本机容器化应用编排和设备管理扩展到边缘主机。 KubeEdge 1.11.1之前版本、1.10.2之前版本 和 1.9.4之前版本存在资源管理错误漏洞，该漏洞源于viaduct WSClien收到的响应太多可能会导致内存耗尽，响应的整个正文会被读入内存，攻击者利用该漏洞可以使服务崩溃。

CVSS 4.4 · Medium EPSS 0.69% · P50
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I. Basic Information for CVE-2022-31080

Vulnerability Information
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Vulnerability Title
KubeEdge Websocket Client in package Viaduct: DoS from large response message
Source: CVE Program / CVE List V5
Vulnerability 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, a large response received by the viaduct WSClient can cause a DoS from memory exhaustion. The entire body of the response is being read into memory which could allow an attacker to send a request that returns a response with a large body. The consequence of the exhaustion is that the process which invokes a WSClient will be in a denial of service. The software is affected If users who are authenticated to the edge side connect to `cloudhub` from the edge side through WebSocket protocol. This bug has been fixed in Kubeedge 1.11.1, 1.10.2, and 1.9.4. There are currently no known workarounds.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
KubeEdge 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
KubeEdge是KubeEdge开源的一个 Kubernetes 原生边缘计算框架。基于 Kubernetes 构建，并将本机容器化应用编排和设备管理扩展到边缘主机。 KubeEdge 1.11.1之前版本、1.10.2之前版本 和 1.9.4之前版本存在资源管理错误漏洞，该漏洞源于viaduct WSClien收到的响应太多可能会导致内存耗尽，响应的整个正文会被读入内存，攻击者利用该漏洞可以使服务崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
kubeedge kubeedge = 1.11.0 -

II. Public POCs for CVE-2022-31080

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III. Intelligence Information for CVE-2022-31080

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Vendor Advisories for CVE-2022-31080 (1)

Same Patch Batch · kubeedge · 2022-07-11 · 6 CVEs total

CVE-2022-31073 6.5 MEDIUM KubeEdge Edge ServiceBus module DoS
CVE-2022-31075 4.9 MEDIUM KubeEdge DoS when signing the CSR from EdgeCore
CVE-2022-31074 4.5 MEDIUM KubeEdge Cloud AdmissionController component DoS
CVE-2022-31078 4.4 MEDIUM KubeEdge CloudCore Router memory exhaustion
CVE-2022-31079 4.4 MEDIUM KubeEdge Cloud Stream and Edge Stream DoS from large stream message

IV. Related Vulnerabilities

Same product: kubeedge
Same vendor: kubeedge
Same weakness: CWE-400

V. Comments for CVE-2022-31080

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