CVE-2021-36153: Incomplete Internal State Distinction in GRPCWebToHTTP2ServerCodec

June 9, 2023

Affected gRPC Swift servers are vulnerable to precondition failures when parsing certain gRPC Web requests. This may lead to a denial of service.

References

bugs.chromium.org/p/oss-fuzz/issues/detail?id=35267
github.com/advisories/GHSA-2jx2-qcm4-rf9h
github.com/grpc/grpc-swift
github.com/grpc/grpc-swift/releases
github.com/grpc/grpc-swift/security/advisories/GHSA-2jx2-qcm4-rf9h
nvd.nist.gov/vuln/detail/CVE-2021-36153

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