CVE-2023-4785

Denial of Service in gRPC Core

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

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.

La falta de manejo de errores en el servidor TCP en gRPC de Google a partir de la versión 1.23 en plataformas compatibles con posix (por ejemplo, Linux) permite a un atacante provocar una denegación de servicio al iniciar una cantidad significativa de conexiones con el servidor. Tenga en cuenta que gRPC C++ Python y Ruby se ven afectados, pero gRPC Java y Go NO se ven afectados.

A flaw was found in gRPC. Lack of error handling in the TCP server in Google's gRPC, starting in version 1.23 on POSIX-compatible platforms (for example, 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.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-09-06 CVE Reserved
2023-09-13 CVE Published
2024-09-25 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-248: Uncaught Exception

CAPEC

CAPEC-125: Flooding

References (7)

URL	Tag	Source
https://github.com/grpc/grpc/pull/33667	Issue Tracking
https://github.com/grpc/grpc/pull/33669	Issue Tracking
https://github.com/grpc/grpc/pull/33670	Issue Tracking
https://github.com/grpc/grpc/pull/33672	Issue Tracking

URL	Date	SRC

URL	Date	SRC
https://github.com/grpc/grpc/pull/33656	2023-09-19

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2023-4785	2024-02-13
https://bugzilla.redhat.com/show_bug.cgi?id=2239017	2024-02-13

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Grpc Search vendor "Grpc"		Grpc Search vendor "Grpc" for product "Grpc"				>= 1.23.0 < 1.53.2 Search vendor "Grpc" for product "Grpc" and version " >= 1.23.0 < 1.53.2"		-		Affected
Grpc Search vendor "Grpc"		Grpc Search vendor "Grpc" for product "Grpc"				>= 1.54.0 < 1.54.3 Search vendor "Grpc" for product "Grpc" and version " >= 1.54.0 < 1.54.3"		-		Affected
Grpc Search vendor "Grpc"		Grpc Search vendor "Grpc" for product "Grpc"				>= 1.55.0 < 1.55.3 Search vendor "Grpc" for product "Grpc" and version " >= 1.55.0 < 1.55.3"		-		Affected
Grpc Search vendor "Grpc"		Grpc Search vendor "Grpc" for product "Grpc"				1.56.0 Search vendor "Grpc" for product "Grpc" and version "1.56.0"		-		Affected