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Uncontrolled Resource Consumption

CVE-2021-23382

High
7.5/10

Summary

The package postcss before 7.0.36 and in 8.x 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=(.*)".

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • NONE
  • HIGH

CWE-400 - Uncontrolled resource consumption

An uncontrolled resource allocation attack (also known as resource exhaustion attack) triggers unauthorized overconsumption of the limited resources in an application, such as memory, file system storage, database connection pool entries, and CPU. This may lead to denial of service for valid users and degradation of the application's functionality as well as that of the host operating system.

References

Advisory Timeline

  • Published