WS-2020-0042 (High) detected in multiple libraries

[mend-bolt-for-github]

WS-2020-0042 - High Severity Vulnerability

Vulnerable Libraries - acorn-5.5.3.tgz, acorn-3.3.0.tgz, acorn-4.0.13.tgz

acorn-5.5.3.tgz

ECMAScript parser

Library home page: https://registry.npmjs.org/acorn/-/acorn-5.5.3.tgz

Path to dependency file: /tmp/ws-scm/guilds.osweekends.com/package.json

Path to vulnerable library: /tmp/ws-scm/guilds.osweekends.com/node_modules/espree/node_modules/acorn/package.json

Dependency Hierarchy:

• eslint-4.19.1.tgz (Root Library)
  • espree-3.5.4.tgz
    • ❌ acorn-5.5.3.tgz (Vulnerable Library)

acorn-3.3.0.tgz

ECMAScript parser

Library home page: https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz

Path to dependency file: /tmp/ws-scm/guilds.osweekends.com/package.json

Path to vulnerable library: /tmp/ws-scm/guilds.osweekends.com/node_modules/acorn/package.json

Dependency Hierarchy:

• eslint-4.19.1.tgz (Root Library)
  • espree-3.5.4.tgz
    • acorn-jsx-3.0.1.tgz
      • ❌ acorn-3.3.0.tgz (Vulnerable Library)

acorn-4.0.13.tgz

ECMAScript parser

Library home page: https://registry.npmjs.org/acorn/-/acorn-4.0.13.tgz

Path to dependency file: /tmp/ws-scm/guilds.osweekends.com/package.json

Path to vulnerable library: /tmp/ws-scm/guilds.osweekends.com/node_modules/is-expression/node_modules/acorn/package.json

Dependency Hierarchy:

• pillars-0.7.1.tgz (Root Library)
  • templated-0.3.9.tgz
    • pug-2.0.0-beta6.tgz
      • pug-code-gen-1.1.1.tgz
        • with-5.1.1.tgz
          • acorn-globals-3.1.0.tgz
            • ❌ acorn-4.0.13.tgz (Vulnerable Library)

Found in HEAD commit: f30dd7a82df3ba133df4217044d20081318714c7

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 (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: 2020-03-08

Fix Resolution: 7.1.1

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