Vulnerability-Lookup

OESA-2023-1726 (CVE-2023-4785)

Vulnerability from osv_openeuler – Published: 2023-10-13 11:06 – Updated: 2026-08-06 11:06 – Source website

Summary

grpc security update

Details

gRPC is a modern open source high performance RPC framework that can run in any environment. It can efficiently connect services in and across data centers with pluggable support for load balancing, tracing, health checking and authentication. It is also applicable in last mile of distributed computing to connect devices, mobile applications and browsers to backend services.

Security Fix(es):

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. (CVE-2023-4785)

Severity

7.5 (High)


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

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-4785	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "python3-grpcio-1.31.0-5.oe1.aarch64.rpm",
          "grpc-devel-1.31.0-5.oe1.aarch64.rpm",
          "grpc-debuginfo-1.31.0-5.oe1.aarch64.rpm",
          "grpc-1.31.0-5.oe1.aarch64.rpm",
          "grpc-debugsource-1.31.0-5.oe1.aarch64.rpm"
        ],
        "src": [
          "grpc-1.31.0-5.oe1.src.rpm"
        ],
        "x86_64": [
          "grpc-1.31.0-5.oe1.x86_64.rpm",
          "python3-grpcio-1.31.0-5.oe1.x86_64.rpm",
          "grpc-debuginfo-1.31.0-5.oe1.x86_64.rpm",
          "grpc-debugsource-1.31.0-5.oe1.x86_64.rpm",
          "grpc-devel-1.31.0-5.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "grpc",
        "purl": "pkg:rpm/openEuler/grpc\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.31.0-5.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "gRPC is a modern open source high performance RPC framework that can run in any environment. It can efficiently connect services in and across data centers with pluggable support for load balancing, tracing, health checking and authentication. It is also applicable in last mile of distributed computing to connect devices, mobile applications and browsers to backend services.\r\n\r\nSecurity Fix(es):\r\n\r\nLack of error handling in the TCP server in Google\u0026apos;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.\u00a0(CVE-2023-4785)",
  "id": "OESA-2023-1726",
  "modified": "2026-08-06T11:06:10Z",
  "published": "2023-10-13T11:06:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1726"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4785"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "grpc security update",
  "upstream": [
    "CVE-2023-4785"
  ]
}

CVE-2023-4785 (GCVE-0-2023-4785)

Vulnerability from cvelistv5 – Published: 2023-09-13 16:31 – Updated: 2026-01-12 15:34

Title

Denial of Service in gRPC Core

Summary

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-25 18:02 UTC

CWE

CWE-248

Assigner

Google Google root

References

5 references

URL	Tags
https://github.com/grpc/grpc/pull/33656
https://github.com/grpc/grpc/pull/33667
https://github.com/grpc/grpc/pull/33669
https://github.com/grpc/grpc/pull/33670
https://github.com/grpc/grpc/pull/33672

Impacted products

2 products

Vendor	Product	Version
Google	gRPC	Unaffected: 0 , < 1.23 (custom) Unaffected: 1.57 Affected: 1.56.0 , ≤ 1.56.1 (custom) Affected: 1.55.0 , ≤ 1.55.2 (custom) Affected: 1.54.0 , ≤ 1.54.2 (custom) Affected: 1.53.0 , ≤ 1.53.1 (custom)
grpc	grpc	Affected: 0 , < 1.23 (custom) Affected: 1.57 Affected: 1.56.0 , ≤ 1.56.1 (custom) Affected: 1.55.0 , ≤ 155.2 (custom) Affected: 1.54.0 , ≤ 1.54.2 (custom) Affected: 1.53.0 , ≤ 1.53.1 (custom) cpe:2.3:a:grpc:grpc::::::::

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T07:38:00.495Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/grpc/grpc/pull/33656"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/grpc/grpc/pull/33667"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/grpc/grpc/pull/33669"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/grpc/grpc/pull/33670"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/grpc/grpc/pull/33672"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:grpc:grpc:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "grpc",
            "vendor": "grpc",
            "versions": [
              {
                "lessThan": "1.23",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              },
              {
                "status": "affected",
                "version": "1.57"
              },
              {
                "lessThanOrEqual": "1.56.1",
                "status": "affected",
                "version": "1.56.0",
                "versionType": "custom"
              },
              {
                "lessThanOrEqual": "155.2",
                "status": "affected",
                "version": "1.55.0",
                "versionType": "custom"
              },
              {
                "lessThanOrEqual": "1.54.2",
                "status": "affected",
                "version": "1.54.0",
                "versionType": "custom"
              },
              {
                "lessThanOrEqual": "1.53.1",
                "status": "affected",
                "version": "1.53.0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-4785",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-25T18:02:01.004344Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-25T18:05:52.337Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "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": "1.54.2",
              "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"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "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.\u0026nbsp;"
            }
          ],
          "value": "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."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-125",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-125 Flooding"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-248",
              "description": "CWE-248",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-12T15:34:12.725Z",
        "orgId": "14ed7db2-1595-443d-9d34-6215bf890778",
        "shortName": "Google"
      },
      "references": [
        {
          "url": "https://github.com/grpc/grpc/pull/33656"
        },
        {
          "url": "https://github.com/grpc/grpc/pull/33667"
        },
        {
          "url": "https://github.com/grpc/grpc/pull/33669"
        },
        {
          "url": "https://github.com/grpc/grpc/pull/33670"
        },
        {
          "url": "https://github.com/grpc/grpc/pull/33672"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Denial of Service in gRPC Core",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778",
    "assignerShortName": "Google",
    "cveId": "CVE-2023-4785",
    "datePublished": "2023-09-13T16:31:55.664Z",
    "dateReserved": "2023-09-06T04:50:57.530Z",
    "dateUpdated": "2026-01-12T15:34:12.725Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.