CVE-2022-29224

Summary

CVECVE-2022-29224
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-06-09 19:15:00 UTC
Updated2023-11-07 03:45:00 UTC
DescriptionEnvoy is a cloud-native high-performance proxy. Versions of envoy prior to 1.22.1 are subject to a segmentation fault in the GrpcHealthCheckerImpl. Envoy can perform various types of upstream health checking. One of them uses gRPC. Envoy also has a feature which can “hold” (prevent removal) upstream hosts obtained via service discovery until configured active health checking fails. If an attacker controls an upstream host and also controls service discovery of that host (via DNS, the EDS API, etc.), an attacker can crash Envoy by forcing removal of the host from service discovery, and then failing the gRPC health check request. This will crash Envoy via a null pointer dereference. Users are advised to upgrade to resolve this vulnerability. Users unable to upgrade may disable gRPC health checking and/or replace it with a different health checking type as a mitigation.

Risk And Classification

Problem Types: CWE-476

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Envoyproxy Envoy All All All All

References

ReferenceSourceLinkTags
Segfault in GrpcHealthCheckerImpl · Advisory · envoyproxy/envoy · GitHub CONFIRM github.com
healthcheck: fix grpc inline removal crashes (#749) · envoyproxy/envoy@9b1c396 · 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

  • 159976 Oracle Enterprise Linux Security Update for olcne (ELSA-2022-9586)
  • 159977 Oracle Enterprise Linux Security Update for olcne (ELSA-2022-9587)
  • 159978 Oracle Enterprise Linux Security Update for olcne (ELSA-2022-9589)
  • 159980 Oracle Enterprise Linux Security Update for olcne (ELSA-2022-9588)
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