CVE-2021-32640 (Medium) detected in ws-5.2.2.tgz

## CVE-2021-32640 - Medium Severity Vulnerability
Vulnerable Library - ws-5.2.2.tgz

Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js

Library home page: https://registry.npmjs.org/ws/-/ws-5.2.2.tgz

Path to dependency file: lts-node/package.json

Path to vulnerable library: lts-node/node_modules/subscriptions-transport-ws/node_modules/ws/package.json

Dependency Hierarchy:
- apollo-server-express-2.25.0.tgz (Root Library)
- subscriptions-transport-ws-0.9.18.tgz
- :x: **ws-5.2.2.tgz** (Vulnerable Library)

Found in HEAD commit: d927237d9a8ea59b5d02e0ac0f1a8a21e8bc6b73

Found in base branch: main

Vulnerability Details

ws is an open source WebSocket client and server library for Node.js. A specially crafted value of the `Sec-Websocket-Protocol` header can be used to significantly slow down a ws server. The vulnerability has been fixed in ws@7.4.6 (https://github.com/websockets/ws/commit/00c425ec77993773d823f018f64a5c44e17023ff). In vulnerable versions of ws, the issue can be mitigated by reducing the maximum allowed length of the request headers using the [`--max-http-header-size=size`](https://nodejs.org/api/cli.html#cli_max_http_header_size_size) and/or the [`maxHeaderSize`](https://nodejs.org/api/http.html#http_http_createserver_options_requestlistener) options.

Publish Date: 2021-05-25

URL: CVE-2021-32640

CVSS 3 Score Details (5.3)

Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://github.com/websockets/ws/security/advisories/GHSA-6fc8-4gx4-v693

Release Date: 2021-05-25

Fix Resolution: ws - 7.4.6

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