In LibSass prior to 3.5.5, functions inside ast.cpp for IMPLEMENT_AST_OPERATORS expansion allow attackers to cause a denial-of-service resulting from stack consumption via a crafted sass file, as demonstrated by recursive calls involving clone(), cloneChildren(), and copy().
CVE-2018-19838 - Medium Severity Vulnerability
Vulnerable Library - node-sass-4.11.0.tgz
Wrapper around libsass
Library home page: https://registry.npmjs.org/node-sass/-/node-sass-4.11.0.tgz
Path to dependency file: /docs/package.json
Path to vulnerable library: /docs/package.json
Dependency Hierarchy: - gulp-sass-4.0.2.tgz (Root Library) - :x: **node-sass-4.11.0.tgz** (Vulnerable Library)
Found in HEAD commit: b22423d123f2a162972d83138f5c1b596cac9420
Found in base branch: develop
Vulnerability Details
In LibSass prior to 3.5.5, functions inside ast.cpp for IMPLEMENT_AST_OPERATORS expansion allow attackers to cause a denial-of-service resulting from stack consumption via a crafted sass file, as demonstrated by recursive calls involving clone(), cloneChildren(), and copy().
Publish Date: 2018-12-04
URL: CVE-2018-19838
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
Release Date: 2018-12-04
Fix Resolution (node-sass): 4.14.0
Direct dependency fix Resolution (gulp-sass): 4.1.0
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