CVE-2023-35944

Summary

CVECVE-2023-35944
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-07-25 19:15:00 UTC
Updated2023-08-02 16:37:00 UTC
DescriptionEnvoy is an open source edge and service proxy designed for cloud-native applications. Envoy allows mixed-case schemes in HTTP/2, however, some internal scheme checks are case-sensitive. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, this can lead to the rejection of requests with mixed-case schemes such as `htTp` or `htTps`, or the bypassing of some requests such as `https` in unencrypted connections. With a fix in versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, Envoy will now lowercase scheme values by default, and change the internal scheme checks that were case-sensitive to be case-insensitive. There are no known workarounds for this issue.

Risk And Classification

Problem Types: CWE-444

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Envoyproxy Envoy All All All All

References

ReferenceSourceLinkTags
Incorrect handling of HTTP requests and responses with mixed case schemes in Envoy · Advisory · envoyproxy/envoy · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 355870 Amazon Linux Security Advisory for ecs-service-connect-agent : ALAS2023-2023-300
  • 356117 Amazon Linux Security Advisory for ecs-service-connect-agent : ALAS2023-2023-344
  • 356246 Amazon Linux Security Advisory for ecs-service-connect-agent : ALASECS-2023-007
  • 356504 Amazon Linux Security Advisory for ecs-service-connect-agent : ALAS2ECS-2023-007
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