CVE-2021-43838

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Summary

CVECVE-2021-43838
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-12-17 19:15:00 UTC
Updated2023-07-21 16:45:00 UTC
Descriptionjsx-slack is a library for building JSON objects for Slack Block Kit surfaces from JSX. In versions prior to 4.5.1 users are vulnerable to a regular expression denial-of-service (ReDoS) attack. If attacker can put a lot of JSX elements into `<blockquote>` tag, an internal regular expression for escaping characters may consume an excessive amount of computing resources. jsx-slack v4.5.1 has patched to a regex for escaping blockquote characters. Users are advised to upgrade as soon as possible.

Risk And Classification

Problem Types: CWE-1333

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Jsx-slack Project Jsx-slack All All All All

References

ReferenceSourceLinkTags
Merge pull request from GHSA-55xv-f85c-248q · yhatt/jsx-slack@36e4a10 · GitHub MISC github.com
Regular Expression Denial of Service (ReDoS) in jsx-slack · Advisory · yhatt/jsx-slack · GitHub CONFIRM github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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