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HIGH7.5

GHSA-m425-mq94-257g

gRPC-Go HTTP/2 Rapid Reset vulnerability

Quick fix

GHSA-m425-mq94-257g — google.golang.org/grpc: upgrade to the fixed version with the command below.

go get google.golang.org/grpc@v1.56.3

Details

### Impact In affected releases of gRPC-Go, it is possible for an attacker to send HTTP/2 requests, cancel them, and send subsequent requests, which is valid by the HTTP/2 protocol, but would cause the gRPC-Go server to launch more concurrent method handlers than the configured maximum stream limit.

### Patches This vulnerability was addressed by #6703 and has been included in patch releases: 1.56.3, 1.57.1, 1.58.3. It is also included in the latest release, 1.59.0.

Along with applying the patch, users should also ensure they are using the `grpc.MaxConcurrentStreams` server option to apply a limit to the server's resources used for any single connection.

### Workarounds None.

### References #6703

Are you affected?

Enter the version of the package you're using.

Affected packages

Go/google.golang.org/grpc
Introduced in: 0Fixed in: 1.56.3
Fixgo get google.golang.org/grpc@v1.56.3
Go/google.golang.org/grpc
Introduced in: 1.57.0Fixed in: 1.57.1
Fixgo get google.golang.org/grpc@v1.57.1
Go/google.golang.org/grpc
Introduced in: 1.58.0Fixed in: 1.58.3
Fixgo get google.golang.org/grpc@v1.58.3

References