WS-2020-0042 (High) detected in acorn-6.4.0.tgz

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

WS-2020-0042 - High Severity Vulnerability

Vulnerable Library - acorn-6.4.0.tgz

ECMAScript parser

Library home page: https://registry.npmjs.org/acorn/-/acorn-6.4.0.tgz

Path to dependency file: /package.json

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

Dependency Hierarchy: - eslint-5.0.0.tgz (Root Library) - espree-4.1.0.tgz - :x: **acorn-6.4.0.tgz** (Vulnerable Library)

Vulnerability Details

acorn is vulnerable to REGEX DoS. A regex of the form /[x-\ud800]/u causes the parser to enter an infinite loop. attackers may leverage the vulnerability leading to a Denial of Service since the string is not valid UTF16 and it results in it being sanitized before reaching the parser.

Publish Date: 2020-03-01

URL: WS-2020-0042

CVSS 3 Score Details (7.5)

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: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://www.npmjs.com/advisories/1488

Release Date: 2020-03-01

Fix Resolution (acorn): 6.4.1

Direct dependency fix Resolution (eslint): 5.0.1

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[MekDrop]

This doesn't affect newer versions than 1.0.0. So won't fix.