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

[mend-bolt-for-github]

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-5.16.0.tgz (Root Library)
  • espree-5.0.1.tgz
    • ❌ acorn-6.4.0.tgz (Vulnerable Library)

Found in HEAD commit: b14fca87a58959a277d06d8192ced260b2f5ddbf

Found in base branch: master

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: GHSA-6chw-6frg-f759

Release Date: 2020-03-01

Fix Resolution (acorn): 6.4.1

Direct dependency fix Resolution (eslint): 6.0.0

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