CVE-2021-23382 (High) detected in postcss-4.1.16.tgz

[mend-bolt-for-github]

CVE-2021-23382 - High Severity Vulnerability

Vulnerable Library - postcss-4.1.16.tgz

Tool for transforming CSS with JS plugins

Library home page: https://registry.npmjs.org/postcss/-/postcss-4.1.16.tgz

Path to dependency file: /reveal.js-master/package.json

Path to vulnerable library: /reveal.js-master/node_modules/postcss/package.json

Dependency Hierarchy:

• grunt-autoprefixer-3.0.4.tgz (Root Library)
  • ❌ postcss-4.1.16.tgz (Vulnerable Library)

Found in HEAD commit: 4af952fa68247806023dc354049f8d5fb2778603

Found in base branch: master

Vulnerability Details

The package postcss before 8.2.13 are vulnerable to Regular Expression Denial of Service (ReDoS) via getAnnotationURL() and loadAnnotation() in lib/previous-map.js. The vulnerable regexes are caused mainly by the sub-pattern /*\s* sourceMappingURL=(.*).

Publish Date: 2021-04-26

URL: CVE-2021-23382

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://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23382

Release Date: 2021-04-26

Fix Resolution: postcss - 8.2.13

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