CVE-2021-32640 (Medium) detected in ws-7.4.3.tgz

[mend-bolt-for-github[bot]]

CVE-2021-32640 - Medium Severity Vulnerability

Vulnerable Library - ws-7.4.3.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-7.4.3.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/ws/package.json

Dependency Hierarchy: - jsdom-16.4.0.tgz (Root Library) - :x: **ws-7.4.3.tgz** (Vulnerable Library)

Found in base branch: master

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

Direct dependency fix Resolution (jsdom): 16.5.0

---

Step up your Open Source Security Game with Mend here

[github-actions[bot]]

👋 Thanks for reporting!