medium
5.3
CWE
440
Advisory Published
Advisory Published
Updated

CVE-2023-32732

First published: Fri Jun 09 2023(Updated: )

gRPC contains a vulnerability whereby a client can cause a termination of connection between a HTTP2 proxy and a gRPC server: a base64 encoding error for `-bin` suffixed headers will result in a disconnection by the gRPC server, but is typically allowed by HTTP2 proxies. We recommend upgrading beyond the commit in  https://github.com/grpc/grpc/pull/32309 https://www.google.com/url

Credit: cve-coordination@google.com cve-coordination@google.com cve-coordination@google.com

Affected SoftwareAffected VersionHow to fix
Grpc Grpc<1.53.0
Fedoraproject Fedora=37
Fedoraproject Fedora=38
rubygems/grpc<1.53.0
1.53.0
pip/grpcio<1.53.0
1.53.0
maven/io.grpc:grpc-protobuf<1.53.0
1.53.0
IBM Cloud Pak for Business Automation<=V23.0.1 - V23.0.1-IF001
IBM Cloud Pak for Business Automation<=V21.0.3 - V21.0.3-IF023
IBM Cloud Pak for Business Automation<=V22.0.2 - V22.0.2-IF006 and later fixes V22.0.1 - V22.0.1-IF006 and later fixes V21.0.2 - V21.0.2-IF012 and later fixes V21.0.1 - V21.0.1-IF007 and later fixes V20.0.1 - V20.0.3 and later fixes V19.0.1 - V19.0.3 and later fixes V18.0.0 - V18.0.2 and later fixes

Remedy

https://github.com/grpc/grpc/pull/32309

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-32732?

    CVE-2023-32732 is a vulnerability in gRPC that allows a client to cause a termination of connection between a HTTP2 proxy and a gRPC server.

  • How severe is CVE-2023-32732?

    CVE-2023-32732 has a severity rating of 5.3, which is considered medium.

  • Which software is affected by CVE-2023-32732?

    The affected software includes grpc gem version up to 1.53.0, grpcio pip package up to 1.53.0, and io.grpc:grpc-protobuf maven package up to 1.53.0.

  • How can I fix CVE-2023-32732?

    To fix CVE-2023-32732, it is recommended to upgrade the affected software to version 1.53.1 or higher.

  • Where can I find more information about CVE-2023-32732?

    You can find more information about CVE-2023-32732 on the NIST National Vulnerability Database (NVD) and the GitHub links provided.

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