CVE-2023-4785 Denial of Service in gRPC Core

2023-09-1316:31:55

CWE-248

Google

www.cve.org

cve-2023-4785

grpc

tcp server

error handling

posix-compatible platforms

linux

denial of service

c++

python

ruby

java

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

22.8%

JSON

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.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "platforms": [
      "Posix-compatible platforms"
    ],
    "product": "gRPC",
    "repo": "https://github.com/grpc/grpc",
    "vendor": "Google",
    "versions": [
      {
        "lessThan": "1.23",
        "status": "unaffected",
        "version": "0",
        "versionType": "custom"
      },
      {
        "status": "unaffected",
        "version": "1.57"
      },
      {
        "changes": [
          {
            "at": "1.56.2",
            "status": "unaffected"
          }
        ],
        "lessThanOrEqual": "1.56.1",
        "status": "affected",
        "version": "1.56.0",
        "versionType": "custom"
      },
      {
        "changes": [
          {
            "at": "1.55.3",
            "status": "unaffected"
          }
        ],
        "lessThanOrEqual": "1.55.2",
        "status": "affected",
        "version": "1.55.0",
        "versionType": "custom"
      },
      {
        "changes": [
          {
            "at": "1.54.3",
            "status": "unaffected"
          }
        ],
        "lessThanOrEqual": "154.2",
        "status": "affected",
        "version": "1.54.0",
        "versionType": "custom"
      },
      {
        "changes": [
          {
            "at": "1.53.2",
            "status": "unaffected"
          }
        ],
        "lessThanOrEqual": "1.53.1",
        "status": "affected",
        "version": "1.53.0",
        "versionType": "custom"
      }
    ]
  }
]