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
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: - transform-pouch-1.1.5.tgz (Root Library) - es3ify-0.2.2.tgz - jstransform-11.0.3.tgz - commoner-0.10.8.tgz - detective-4.7.1.tgz - :x: **acorn-5.7.3.tgz** (Vulnerable Library)
Found in HEAD commit: 3e1f1a630b2e4cf085971585dd7b40cd55fca73c
Found in base branch: master
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
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.Type: Upgrade version
Origin: https://github.com/advisories/GHSA-6chw-6frg-f759
Release Date: 2020-03-01
Fix Resolution (acorn): 5.7.4
Direct dependency fix Resolution (transform-pouch): 2.0.0
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