CVE-2023-32732 MEDIUM

CVE-2023-32732: Denial-of-Service in gRPC

Vendor Google
Product gRPC
Weakness CWE-440
Published June 9, 2023
Last update February 13, 2025

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

June 9, 2023 CVE published
February 13, 2025 Record updated