cve/2021/CVE-2021-23354.md

CVE-2021-23354

Description

The package printf before 0.6.1 are vulnerable to Regular Expression Denial of Service (ReDoS) via the regex string /%(?:(([\w_.]+))|([1-9]\d*)$)?([0 +-]*)(*|\d+)?(.)?(*|\d+)?[hlL]?([%bscdeEfFgGioOuxX])/g in lib/printf.js. The vulnerable regular expression has cubic worst-case time complexity.

POC

Reference

No PoCs from references.

Github

• https://github.com/engn33r/awesome-redos-security
• https://github.com/yetingli/PoCs