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=(.*).
CVE-2021-23382 - Medium Severity Vulnerability
Vulnerable Library - postcss-6.0.23.tgz
Tool for transforming styles with JS plugins
Library home page: https://registry.npmjs.org/postcss/-/postcss-6.0.23.tgz
Path to dependency file: maxmilton.com/package.json
Path to vulnerable library: maxmilton.com/node_modules/postcss
Dependency Hierarchy: - minna-ui-0.36.1-next.57.tgz (Root Library) - postcss-config-0.36.1-next.57.tgz - postcss-use-3.0.0.tgz - :x: **postcss-6.0.23.tgz** (Vulnerable Library)
Found in HEAD commit: 56e0f4fd3b7e6fe896c897b8556d1bcc6c07eb0c
Found in base branch: master
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
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