CVE-2021-23382 Information

Description

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=(.).

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Reference

https://github.com/postcss/postcss/commit/2b1d04c867995e55124e0a165b7c6622c1735956 https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1255641 https://snyk.io/vuln/SNYK-JS-POSTCSS-1255640

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

LOW

Base Severity

5.3