## CVE-2021-23382 - Medium Severity Vulnerability

Vulnerable Libraries - postcss-7.0.17.tgz, postcss-6.0.1.tgz

postcss-7.0.17.tgz

Tool for transforming styles with JS plugins

Library home page: https://registry.npmjs.org/postcss/-/postcss-7.0.17.tgz

Path to dependency file: typescript-tools/package.json

Path to vulnerable library: typescript-tools/node_modules/@reshadow/postcss/node_modules/postcss/package.json

Dependency Hierarchy: - reshadow-0.0.1-alpha.80.tgz (Root Library) - postcss-0.0.1-alpha.80.tgz - :x: **postcss-7.0.17.tgz** (Vulnerable Library)

postcss-6.0.1.tgz

Tool for transforming styles with JS plugins

Library home page: https://registry.npmjs.org/postcss/-/postcss-6.0.1.tgz

Path to dependency file: typescript-tools/package.json

Path to vulnerable library: typescript-tools/node_modules/css-modules-loader-core/node_modules/postcss/package.json

Dependency Hierarchy: - reshadow-0.0.1-alpha.80.tgz (Root Library) - babel-0.0.1-alpha.80.tgz - css-modules-loader-core-1.1.0.tgz - :x: **postcss-6.0.1.tgz** (Vulnerable Library)

Found in HEAD commit: 0984812138d5c8807a4369820757f31a2f07390d

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 (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-2021-23382

Release Date: 2021-04-26

Fix Resolution: postcss - 8.2.13

*** Step up your Open Source Security Game with WhiteSource [here](https://www.whitesourcesoftware.com/full_solution_bolt_github)

CVE-2021-23382 (Medium) detected in postcss-7.0.17.tgz, postcss-6.0.1.tgz #1126

Company

Community

Support

Connect