Description
The package node-opcua before 2.74.0 are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.
Remediation
References
https://github.com/node-opcua/node-opcua/commit/33ca3bab4ab781392a2f8d8f5a14de9a0aa0e410
https://github.com/node-opcua/node-opcua/commit/dbcb5d5191118c22ee9c89332a94b94e6553d76b
https://github.com/node-opcua/node-opcua/pull/1149
https://security.snyk.io/vuln/SNYK-JS-NODEOPCUA-2988723
Related Vulnerabilities
CVE-2020-11072 Vulnerability in npm package slpjs
CVE-2020-7609 Vulnerability in npm package node-rules
CVE-2017-12611 Vulnerability in maven package org.apache.struts:struts2-core
CVE-2014-0230 Vulnerability in maven package org.apache.tomcat:catalina
CVE-2011-2088 Vulnerability in maven package org.apache.struts.xwork:xwork-core