CVE-2021-21317

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2021-21317
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-02-16 18:15:00 UTC
Updated2021-02-26 14:26:00 UTC
Descriptionuap-core in an open-source npm package which contains the core of BrowserScope's original user agent string parser. In uap-core before version 0.11.0, some regexes are vulnerable to regular expression denial of service (REDoS) due to overlapping capture groups. This allows remote attackers to overload a server by setting the User-Agent header in an HTTP(S) request to maliciously crafted long strings. This is fixed in version 0.11.0. Downstream packages such as uap-python, uap-ruby etc which depend upon uap-core follow different version schemes.

Risk And Classification

Problem Types: CWE-400

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Uap-core Project Uap-core All All All All
Application Uap-core Project Uap-core All All All All

References

ReferenceSourceLinkTags
Merge pull request from GHSA-p4pj-mg4r-x6v4 · ua-parser/uap-core@dc9925d · GitHub MISC github.com Patch, Third Party Advisory
Denial of Service in uap-core <=0.10.0 when processing crafted User-Agent strings · Advisory · ua-parser/uap-core · GitHub CONFIRM github.com Third Party Advisory
uap-core - npm MISC www.npmjs.com Product, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 982947 Nodejs (npm) Security Update for uap-core (GHSA-p4pj-mg4r-x6v4)

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