CVE-2021-43824

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Summary

CVECVE-2021-43824
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-02-22 23:15:00 UTC
Updated2022-03-01 20:47:00 UTC
DescriptionEnvoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions a crafted request crashes Envoy when a CONNECT request is sent to JWT filter configured with regex match. This provides a denial of service attack vector. The only workaround is to not use regex in the JWT filter. Users are advised to upgrade.

Risk And Classification

Problem Types: CWE-476

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Envoyproxy Envoy All All All All

References

ReferenceSourceLinkTags
CVE-2021-43824 · envoyproxy/envoy@9371333 · GitHub MISC github.com
Potential null pointer dereference when using JWT filter safe_regex match · Advisory · envoyproxy/envoy · 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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