CVE-2018-20821 (Medium) detected in multiple libraries

[mend-bolt-for-github]

CVE-2018-20821 - Medium Severity Vulnerability

Vulnerable Libraries - node-sass-4.14.1.tgz

node-sass-4.14.1.tgz

Wrapper around libsass

Library home page: https://registry.npmjs.org/node-sass/-/node-sass-4.14.1.tgz

Path to dependency file: /tmp/ws-scm/series-scraper/package.json

Path to vulnerable library: /tmp/ws-scm/series-scraper/node_modules/node-sass/package.json

Dependency Hierarchy:

• webpacker-4.2.2.tgz (Root Library)
  • ❌ node-sass-4.14.1.tgz (Vulnerable Library)

Found in HEAD commit: 6934e0cf5544ddb26c242c2ace1ae984a163bb8d

Vulnerability Details

The parsing component in LibSass through 3.5.5 allows attackers to cause a denial-of-service (uncontrolled recursion in Sass::Parser::parse_css_variable_value in parser.cpp).

Publish Date: 2019-04-23

URL: CVE-2018-20821

CVSS 3 Score Details (6.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • 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-2018-20821

Release Date: 2019-04-23

Fix Resolution: LibSass - 3.6.0

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