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-5.7.3.tgz, acorn-6.1.1.tgz
acorn-5.7.3.tgz
ECMAScript parser
Library home page: https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz
Path to dependency file: stripe-distinct-usage-tracking/package.json
Path to vulnerable library: stripe-distinct-usage-tracking/node_modules/acorn
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)
acorn-6.1.1.tgz
ECMAScript parser
Library home page: https://registry.npmjs.org/acorn/-/acorn-6.1.1.tgz
Path to dependency file: stripe-distinct-usage-tracking/package.json
Path to vulnerable library: stripe-distinct-usage-tracking/node_modules/acorn
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)
Found in HEAD commit: 83c1642c7babb504882f75d3a9d951f65620b0dd
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: 2020-03-08
Fix Resolution: 7.1.1
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