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websocket-extensions npm module prior to 0.1.4 allows Denial of Service (DoS) via Regex Backtracking. The extension parser may take quadratic time when parsing a header containing an unclosed string parameter value whose content is a repeating two-byte sequence of a backslash and some other character. This could be abused by an attacker to conduct Regex Denial Of Service (ReDoS) on a single-threaded server by providing a malicious payload with the Sec-WebSocket-Extensions header.
CVE-2020-7662 - High Severity Vulnerability
Vulnerable Library - websocket-extensions-0.1.3.tgz
Generic extension manager for WebSocket connections
Library home page: https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.3.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/websocket-extensions/package.json
Dependency Hierarchy:
Found in HEAD commit: e09ef1e3a45be925a41a2e1aa6a0bcbc6b3c41ea
Found in base branch: master
Vulnerability Details
websocket-extensions npm module prior to 0.1.4 allows Denial of Service (DoS) via Regex Backtracking. The extension parser may take quadratic time when parsing a header containing an unclosed string parameter value whose content is a repeating two-byte sequence of a backslash and some other character. This could be abused by an attacker to conduct Regex Denial Of Service (ReDoS) on a single-threaded server by providing a malicious payload with the Sec-WebSocket-Extensions header.
Publish Date: 2020-06-02
URL: CVE-2020-7662
CVSS 3 Score Details (7.5)
Base Score Metrics:
Suggested Fix
Type: Upgrade version
Origin: GHSA-g78m-2chm-r7qv
Release Date: 2020-06-02
Fix Resolution (websocket-extensions): 0.1.4
Direct dependency fix Resolution (@angular/cli): 1.7.4
⛑️ Automatic Remediation will be attempted for this issue.
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