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.
WS-2020-0042 - High Severity Vulnerability
Vulnerable Libraries - acorn-6.1.1.tgz, acorn-5.7.3.tgz
acorn-6.1.1.tgz
ECMAScript parser
Library home page: https://registry.npmjs.org/acorn/-/acorn-6.1.1.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/acorn-globals/node_modules/acorn/package.json
Dependency Hierarchy: - jest-24.8.0.tgz (Root Library) - jest-cli-24.8.0.tgz - jest-config-24.8.0.tgz - jest-environment-jsdom-24.8.0.tgz - jsdom-11.12.0.tgz - acorn-globals-4.3.2.tgz - :x: **acorn-6.1.1.tgz** (Vulnerable Library)
acorn-5.7.3.tgz
ECMAScript parser
Library home page: https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/acorn/package.json
Dependency Hierarchy: - jest-24.8.0.tgz (Root Library) - jest-cli-24.8.0.tgz - jest-config-24.8.0.tgz - jest-environment-jsdom-24.8.0.tgz - jsdom-11.12.0.tgz - :x: **acorn-5.7.3.tgz** (Vulnerable Library)
Found in HEAD commit: 940b9f1e77abd1eb330bad2b4b0dd70339e0ab2a
Found in base branch: auth-test
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://github.com/advisories/GHSA-6chw-6frg-f759
Release Date: 2020-03-01
Fix Resolution (acorn): 6.4.1
Direct dependency fix Resolution (jest): 24.9.0
Fix Resolution (acorn): 6.4.1
Direct dependency fix Resolution (jest): 24.9.0
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