ubuntu-cve-2023-4785
Vulnerability from osv_ubuntu
Published
2023-09-13 17:15
Modified
2026-05-20 15:02
Summary
Details

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.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgrpc0",
            "binary_version": "0.11.1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "grpc",
        "purl": "pkg:deb/ubuntu/grpc@0.11.1-1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.10.2-1",
        "0.11.1-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgrpc++1",
            "binary_version": "1.3.2-1.1~build1"
          },
          {
            "binary_name": "libgrpc3",
            "binary_version": "1.3.2-1.1~build1"
          },
          {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.3.2-1.1~build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "grpc",
        "purl": "pkg:deb/ubuntu/grpc@1.3.2-1.1~build1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.3.2-1",
        "1.3.2-1ubuntu1",
        "1.3.2-1.1~build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgrpc++1",
            "binary_version": "1.16.1-1ubuntu5"
          },
          {
            "binary_name": "libgrpc6",
            "binary_version": "1.16.1-1ubuntu5"
          },
          {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.16.1-1ubuntu5"
          },
          {
            "binary_name": "python3-grpcio",
            "binary_version": "1.16.1-1ubuntu5"
          },
          {
            "binary_name": "ruby-grpc",
            "binary_version": "1.16.1-1ubuntu5"
          },
          {
            "binary_name": "ruby-grpc-tools",
            "binary_version": "1.16.1-1ubuntu5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "grpc",
        "purl": "pkg:deb/ubuntu/grpc@1.16.1-1ubuntu5?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.16.1-1",
        "1.16.1-1ubuntu1",
        "1.16.1-1ubuntu3",
        "1.16.1-1ubuntu4",
        "1.16.1-1ubuntu5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgrpc++1",
            "binary_version": "1.30.2-3build6"
          },
          {
            "binary_name": "libgrpc10",
            "binary_version": "1.30.2-3build6"
          },
          {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.30.2-3build6"
          },
          {
            "binary_name": "python3-grpcio",
            "binary_version": "1.30.2-3build6"
          },
          {
            "binary_name": "ruby-grpc",
            "binary_version": "1.30.2-3build6"
          },
          {
            "binary_name": "ruby-grpc-tools",
            "binary_version": "1.30.2-3build6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "grpc",
        "purl": "pkg:deb/ubuntu/grpc@1.30.2-3build6?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.30.2-3",
        "1.30.2-3build1",
        "1.30.2-3build3",
        "1.30.2-3build5",
        "1.30.2-3build6"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgrpc++1.51t64",
            "binary_version": "1.51.1-4.1build5"
          },
          {
            "binary_name": "libgrpc29t64",
            "binary_version": "1.51.1-4.1build5"
          },
          {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.51.1-4.1build5"
          },
          {
            "binary_name": "python3-grpcio",
            "binary_version": "1.51.1-4.1build5"
          },
          {
            "binary_name": "ruby-grpc",
            "binary_version": "1.51.1-4.1build5"
          },
          {
            "binary_name": "ruby-grpc-tools",
            "binary_version": "1.51.1-4.1build5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "grpc",
        "purl": "pkg:deb/ubuntu/grpc@1.51.1-4.1build5?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.51.1-3build3",
        "1.51.1-3build4",
        "1.51.1-4",
        "1.51.1-4build1",
        "1.51.1-4build2",
        "1.51.1-4.1build3",
        "1.51.1-4.1build4",
        "1.51.1-4.1build5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgrpc++1.51t64",
            "binary_version": "1.51.1-6build1"
          },
          {
            "binary_name": "libgrpc29t64",
            "binary_version": "1.51.1-6build1"
          },
          {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.51.1-6build1"
          },
          {
            "binary_name": "python3-grpcio",
            "binary_version": "1.51.1-6build1"
          },
          {
            "binary_name": "ruby-grpc",
            "binary_version": "1.51.1-6build1"
          },
          {
            "binary_name": "ruby-grpc-tools",
            "binary_version": "1.51.1-6build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "grpc",
        "purl": "pkg:deb/ubuntu/grpc@1.51.1-6build1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.51.1-6",
        "1.51.1-6build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgrpc++1.51t64",
            "binary_version": "1.51.1-8ubuntu1"
          },
          {
            "binary_name": "libgrpc29t64",
            "binary_version": "1.51.1-8ubuntu1"
          },
          {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.51.1-8ubuntu1"
          },
          {
            "binary_name": "python3-grpcio",
            "binary_version": "1.51.1-8ubuntu1"
          },
          {
            "binary_name": "ruby-grpc",
            "binary_version": "1.51.1-8ubuntu1"
          },
          {
            "binary_name": "ruby-grpc-tools",
            "binary_version": "1.51.1-8ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "grpc",
        "purl": "pkg:deb/ubuntu/grpc@1.51.1-8ubuntu1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.51.1-6build1",
        "1.51.1-7",
        "1.51.1-7ubuntu2",
        "1.51.1-7ubuntu3",
        "1.51.1-8ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "Lack of error handling in the TCP server in Google\u0027s 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.",
  "id": "UBUNTU-CVE-2023-4785",
  "modified": "2026-05-20T15:02:13Z",
  "published": "2023-09-13T17:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-4785"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/grpc/grpc/pull/33656"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/grpc/grpc/pull/33667"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/grpc/grpc/pull/33669"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/grpc/grpc/pull/33670"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/grpc/grpc/pull/33672"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-4785"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-4785"
  ]
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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