acorn-5.5.3.js: 1 vulnerabilities (highest severity is: 7.5)

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Vulnerable Library - acorn-5.5.3.js

ECMAScript parser

Library home page: https://cdnjs.cloudflare.com/ajax/libs/acorn/5.5.3/acorn.js

Path to vulnerable library: /.js

Vulnerabilities

CVE	Severity	CVSS	Dependency	Type	Fixed in (acorn version)	Remediation Possible**	Reachability
WS-2020-0042	High	7.5	acorn-5.5.3.js	Direct	acorn - 5.7.4,6.4.1,7.1.1	❌

**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation

Details

WS-2020-0042

### Vulnerable Library - acorn-5.5.3.js

ECMAScript parser

Library home page: https://cdnjs.cloudflare.com/ajax/libs/acorn/5.5.3/acorn.js

Path to vulnerable library: /.js

Dependency Hierarchy: - :x: **acorn-5.5.3.js** (Vulnerable Library)

Found in base branch: main

### 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 - 5.7.4,6.4.1,7.1.1