CVE-2021-23368 (Medium) detected in postcss-7.0.35.tgz, postcss-8.2.8.tgz

[mend-bolt-for-github]

CVE-2021-23368 - Medium Severity Vulnerability

Vulnerable Libraries - postcss-7.0.35.tgz, postcss-8.2.8.tgz

postcss-7.0.35.tgz

Tool for transforming styles with JS plugins

Library home page: https://registry.npmjs.org/postcss/-/postcss-7.0.35.tgz

Path to dependency file: web-ui/package.json

Path to vulnerable library: web-ui/node_modules/postcss/package.json

Dependency Hierarchy:

• resolve-url-loader-4.0.0.tgz (Root Library)
  • ❌ postcss-7.0.35.tgz (Vulnerable Library)

postcss-8.2.8.tgz

Tool for transforming styles with JS plugins

Library home page: https://registry.npmjs.org/postcss/-/postcss-8.2.8.tgz

Path to dependency file: web-ui/package.json

Path to vulnerable library: web-ui/node_modules/postcss/package.json

Dependency Hierarchy:

• postcss7-compat-2.0.4.tgz (Root Library)
  • postcss-purgecss-3.1.3.tgz
    • purgecss-3.1.3.tgz
      • ❌ postcss-8.2.8.tgz (Vulnerable Library)

Found in HEAD commit: 4f207d3a2f9f2197f19cb4fb9970212163bce29c

Found in base branch: main

Vulnerability Details

The package postcss from 7.0.0 and before 8.2.10 are vulnerable to Regular Expression Denial of Service (ReDoS) during source map parsing.

Publish Date: 2021-04-12

URL: CVE-2021-23368

CVSS 3 Score Details (5.3)

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: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23368

Release Date: 2021-04-12

Fix Resolution: postcss -8.2.10

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