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 Libraries - node-sass-4.14.1.tgz, node-sass-4.13.0.tgz, node-sassv4.13.1
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: yugabyte-db/managed/ui/package.json
Path to vulnerable library: yugabyte-db/managed/ui/node_modules/node-sass/package.json
Dependency Hierarchy: - :x: **node-sass-4.14.1.tgz** (Vulnerable Library)
node-sass-4.13.0.tgz
Wrapper around libsass
Library home page: https://registry.npmjs.org/node-sass/-/node-sass-4.13.0.tgz
Path to dependency file: yugabyte-db/docs/package.json
Path to vulnerable library: yugabyte-db/docs/node_modules/node-sass/package.json
Dependency Hierarchy: - :x: **node-sass-4.13.0.tgz** (Vulnerable Library)
Found in HEAD commit: d5a0ed9bff63893a5435e09333d22846f6bb3acc
Found in base branch: master
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
Origin: https://github.com/sass/libsass/issues/2660
Release Date: 2018-12-04
Fix Resolution: libsass - 3.6.1