CVE-2022-35923

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Summary

CVECVE-2022-35923
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-08-02 20:15:00 UTC
Updated2023-07-21 20:49:00 UTC
Descriptionv8n is a javascript validation library. Versions of v8n prior to 1.5.1 were found to have an inefficient regular expression complexity in the `lowercase()` and `uppercase()` regex which could lead to a denial of service attack. In testing of the `lowercase()` function a payload of 'a' + 'a'.repeat(i) + 'A' with 32 leading characters took 29443 ms to execute. The same issue happens with uppercase(). Users are advised to upgrade. There are no known workarounds for this issue.

Risk And Classification

Problem Types: CWE-1333

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application V8n Project V8n All All All All

References

ReferenceSourceLinkTags
Inefficient Regular Expression Complexity potentially leads to Denial of Service in vulnerability found in v8n MISC huntr.dev
Inefficient Regular Expression Complexity · Advisory · imbrn/v8n · GitHub CONFIRM github.com
fix inefficient regular expressions on lowercase and uppercase rules · imbrn/v8n@9239386 · GitHub MISC github.com
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