An issue was discovered in PostCSS before 8.4.31. The vulnerability affects linters using PostCSS to parse external untrusted CSS. An attacker can prepare CSS in such a way that it will contains parts parsed by PostCSS as a CSS comment. After processing by PostCSS, it will be included in the PostCSS output in CSS nodes (rules, properties) despite being included in a comment.
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=(.*).
:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.
Vulnerable Library - css-loader-3.5.3.tgz
Path to dependency file: /ui/package.json
Path to vulnerable library: /ui/node_modules/postcss/package.json
Vulnerabilities
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
CVE-2023-44270
### Vulnerable Library - postcss-7.0.34.tgzTool for transforming styles with JS plugins
Library home page: https://registry.npmjs.org/postcss/-/postcss-7.0.34.tgz
Path to dependency file: /ui/package.json
Path to vulnerable library: /ui/node_modules/postcss/package.json
Dependency Hierarchy: - css-loader-3.5.3.tgz (Root Library) - :x: **postcss-7.0.34.tgz** (Vulnerable Library)
Found in base branch: master
### Vulnerability DetailsAn issue was discovered in PostCSS before 8.4.31. The vulnerability affects linters using PostCSS to parse external untrusted CSS. An attacker can prepare CSS in such a way that it will contains parts parsed by PostCSS as a CSS comment. After processing by PostCSS, it will be included in the PostCSS output in CSS nodes (rules, properties) despite being included in a comment.
Publish Date: 2023-09-29
URL: CVE-2023-44270
### 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: Low - Availability Impact: None
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://github.com/advisories/GHSA-7fh5-64p2-3v2j
Release Date: 2023-09-29
Fix Resolution (postcss): 8.4.31
Direct dependency fix Resolution (css-loader): 6.9.0
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.CVE-2021-23382
### Vulnerable Library - postcss-7.0.34.tgzTool for transforming styles with JS plugins
Library home page: https://registry.npmjs.org/postcss/-/postcss-7.0.34.tgz
Path to dependency file: /ui/package.json
Path to vulnerable library: /ui/node_modules/postcss/package.json
Dependency Hierarchy: - css-loader-3.5.3.tgz (Root Library) - :x: **postcss-7.0.34.tgz** (Vulnerable Library)
Found in base branch: master
### Vulnerability DetailsThe 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 FixType: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23382
Release Date: 2021-04-26
Fix Resolution (postcss): 7.0.36
Direct dependency fix Resolution (css-loader): 3.6.0
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.CVE-2021-23368
### Vulnerable Library - postcss-7.0.34.tgzTool for transforming styles with JS plugins
Library home page: https://registry.npmjs.org/postcss/-/postcss-7.0.34.tgz
Path to dependency file: /ui/package.json
Path to vulnerable library: /ui/node_modules/postcss/package.json
Dependency Hierarchy: - css-loader-3.5.3.tgz (Root Library) - :x: **postcss-7.0.34.tgz** (Vulnerable Library)
Found in base branch: master
### Vulnerability DetailsThe package postcss from 7.0.0 and before 8.2.10 are vulnerable to Regular Expression Denial of Service (ReDoS) during source map parsing.
Publish Date: 2021-04-12
URL: CVE-2021-23368
### 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 FixType: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23368
Release Date: 2021-04-12
Fix Resolution (postcss): 7.0.36
Direct dependency fix Resolution (css-loader): 3.6.0
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.:rescue_worker_helmet:Automatic Remediation will be attempted for this issue.