WS-2020-0042 (Medium) detected in acorn-2.7.0.tgz, acorn-6.4.0.tgz

[mend-bolt-for-github]

WS-2020-0042 - Medium Severity Vulnerability

Vulnerable Libraries - acorn-2.7.0.tgz, acorn-6.4.0.tgz

acorn-2.7.0.tgz

ECMAScript parser

Library home page: https://registry.npmjs.org/acorn/-/acorn-2.7.0.tgz

Path to dependency file: /tmp/ws-scm/webpack-mpa-next/package.json

Path to vulnerable library: /tmp/ws-scm/webpack-mpa-next/node_modules/acorn-globals/node_modules/acorn/package.json

Dependency Hierarchy:

• spritesh-1.2.1.tgz (Root Library)
  • cheerio-0.20.0.tgz
    • jsdom-7.2.2.tgz
      • acorn-globals-1.0.9.tgz
        • ❌ acorn-2.7.0.tgz (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: /tmp/ws-scm/webpack-mpa-next/package.json

Path to vulnerable library: /tmp/ws-scm/webpack-mpa-next/node_modules/eslint-config-react-native/node_modules/acorn/package.json

Dependency Hierarchy:

• eslint-config-recommended-4.0.0.tgz (Root Library)
  • eslint-config-esnext-4.0.0.tgz
    • eslint-5.16.0.tgz
      • espree-5.0.1.tgz
        • ❌ acorn-6.4.0.tgz (Vulnerable Library)

Found in HEAD commit: 20f2ee206546069f14a20babae1ee1dfe5b38aa0

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: 2020-03-08

URL: WS-2020-0042

CVSS 3 Score Details (5.0)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: N/A
  • Attack Complexity: N/A
  • Privileges Required: N/A
  • User Interaction: N/A
  • Scope: N/A
• Impact Metrics:
  • Confidentiality Impact: N/A
  • Integrity Impact: N/A
  • Availability Impact: N/A

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

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

Release Date: 2020-03-08

Fix Resolution: 7.1.1

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