CVE-2019-15226

Summary

CVECVE-2019-15226
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-10-09 16:15:00 UTC
Updated2019-10-17 17:03:00 UTC
DescriptionUpon receiving each incoming request header data, Envoy will iterate over existing request headers to verify that the total size of the headers stays below a maximum limit. The implementation in versions 1.10.0 through 1.11.1 for HTTP/1.x traffic and all versions of Envoy for HTTP/2 traffic had O(n^2) performance characteristics. A remote attacker may craft a request that stays below the maximum request header size but consists of many thousands of small headers to consume CPU and result in a denial-of-service attack.

Risk And Classification

Problem Types: CWE-400

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Envoyproxy Envoy 1.0.0 All All All
Application Envoyproxy Envoy 1.1.0 All All All
Application Envoyproxy Envoy 1.10.0 All All All
Application Envoyproxy Envoy 1.11.0 All All All
Application Envoyproxy Envoy 1.11.1 All All All
Application Envoyproxy Envoy 1.11.2 All All All
Application Envoyproxy Envoy 1.2.0 All All All
Application Envoyproxy Envoy 1.3.0 All All All
Application Envoyproxy Envoy 1.4.0 All All All
Application Envoyproxy Envoy 1.5.0 All All All
Application Envoyproxy Envoy 1.6.0 All All All
Application Envoyproxy Envoy 1.7.0 All All All
Application Envoyproxy Envoy 1.7.1 All All All
Application Envoyproxy Envoy 1.8.0 All All All
Application Envoyproxy Envoy 1.9.0 All All All
Application Envoyproxy Envoy 1.9.1 All All All
Application Envoyproxy Envoy 1.0.0 All All All
Application Envoyproxy Envoy 1.1.0 All All All
Application Envoyproxy Envoy 1.10.0 All All All
Application Envoyproxy Envoy 1.11.0 All All All
Application Envoyproxy Envoy 1.11.1 All All All
Application Envoyproxy Envoy 1.11.2 All All All
Application Envoyproxy Envoy 1.2.0 All All All
Application Envoyproxy Envoy 1.3.0 All All All
Application Envoyproxy Envoy 1.4.0 All All All
Application Envoyproxy Envoy 1.5.0 All All All
Application Envoyproxy Envoy 1.6.0 All All All
Application Envoyproxy Envoy 1.7.0 All All All
Application Envoyproxy Envoy 1.7.1 All All All
Application Envoyproxy Envoy 1.8.0 All All All
Application Envoyproxy Envoy 1.9.0 All All All
Application Envoyproxy Envoy 1.9.1 All All All

References

ReferenceSourceLinkTags
Track byteSize of HeaderMap internally. · envoyproxy/envoy@afc39be · GitHub MISC github.com Patch, Third Party Advisory
CVE-2019-15226 · Issue #8520 · envoyproxy/envoy · GitHub MISC github.com Third Party Advisory
Commits · envoyproxy/envoy · GitHub MISC github.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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