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CVE-2023-4785

Good to know:

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Date: September 13, 2023

Lack of error handling in the TCP server in Google's gRPC starting version 1.23 on posix-compatible platforms (ex. Linux) allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Java, and Go are NOT affected. 

Language: C++

Severity Score

Related Resources (14)

https://github.com/grpc/grpc/pull/33670
https://nvd.nist.gov/vuln/detail/CVE-2023-4785
https://security-tracker.debian.org/tracker/CVE-2023-4785
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/grpc/CVE-2023-4785.yml
https://github.com/grpc/grpc/pull/33669
https://github.com/grpc/grpc/pull/33656
https://github.com/grpc/grpc/pull/33667
https://groups.google.com/g/grpc-io/c/LlLkB1CeE4U
https://rubygems.org/gems/grpc/versions/1.55.3
https://rubygems.org/gems/grpc/versions/1.56.2
https://rubygems.org/gems/grpc/versions/1.53.2
https://github.com/grpc/grpc/pull/33672
https://rubygems.org/gems/grpc/versions/1.54.3
https://www.mend.io/vulnerability-database/CVE-2023-4785

Severity Score

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

Uncaught Exception

CWE-248

Top Fix

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Upgrade Version

Upgrade to version grpc - 1.56.2;grpc - 1.55.3;grpc - 1.54.3;grpc - 1.53.2;grpcio - 1.55.3;grpcio - 1.54.3;grpcio - 1.53.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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