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Database

Asymmetric denial of service - ReDoS In fast-xml-parser

Description

fast-xml-parser vulnerable to ReDOS at currency parsing

Summary

A ReDOS that exists on currency.js was discovered by Gauss Security Labs R&D team.

Details

https://github.com/NaturalIntelligence/fast-xml-parser/blob/v4.4.0/src/v5/valueParsers/currency.js#L10 contains a vulnerable regex

PoC

pass the following string '\t'.repeat(13337) + '.'

Impact

Denial of service during currency parsing in experimental version 5 of fast-xml-parser-library

https://gauss-security.com

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem
Package
Affected version
Patched versions

Aliases

1. CVE-2024-418182. NVD-2024-418183. OSV-2024-418184. GHSA-mpg4-rc92-vx8v5. GCVE-2024-41818

References

1. https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-mpg4-rc92-vx8v2. https://github.com/NaturalIntelligence/fast-xml-parser/commit/ba5f35e7680468acd7906eaabb2f69e28ed8b2aa3. https://github.com/NaturalIntelligence/fast-xml-parser/commit/d0bfe8a3a2813a185f39591bbef222212d8561644. https://github.com/NaturalIntelligence/fast-xml-parser/blob/master/src/v5/valueParsers/currency.js#L10

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