CVE-2023-4785

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2023-4785
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-4785.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-4785
Aliases
Downstream
Related
Published
2023-09-13T16:31:55.664Z
Modified
2026-07-17T20:57:46.980522604Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Denial of Service in gRPC Core
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.

Database specific 
{
    "cwe_ids": [
        "CWE-248"
    ],
    "cna_assigner": "Google",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4785.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "1.56.0"
                },
                {
                    "last_affected": "1.56.1"
                },
                {
                    "introduced": "1.55.0"
                },
                {
                    "last_affected": "1.55.2"
                },
                {
                    "introduced": "1.54.0"
                },
                {
                    "last_affected": "1.54.2"
                },
                {
                    "introduced": "1.53.0"
                },
                {
                    "last_affected": "1.53.1"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/grpc/grpc-go

Affected ranges

Type
GIT
Repo
https://github.com/grpc/grpc-go
Events
Introduced
0ed709c4a71d08e5877b4bfb41c2747b0d1c3240
Last affected
0ed709c4a71d08e5877b4bfb41c2747b0d1c3240
Database specific 
{
    "extracted_events": [
        {
            "introduced": "1.56.0"
        },
        {
            "last_affected": "1.56.0"
        }
    ],
    "cpe": "cpe:2.3:a:grpc:grpc:1.56.0:*:*:*:*:-:*:*",
    "source": "CPE_STRING"
}

Affected versions

1.*
1.56.0
v1.*
v1.56.0-dev

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-4785.json"

Git / github.com/grpc/grpc-java

Affected ranges

Type
GIT
Repo
https://github.com/grpc/grpc-java
Events
Introduced
e48040541bb2b42e2465344faee241a24d747466
Fixed
958205ddb1ab7ec1f5bb92a1a812cf30fa753c36
Introduced
d25095c2a714bb9abccdb6622a13b8bc768dc18a
Database specific 
{
    "extracted_events": [
        {
            "introduced": "1.55.0"
        },
        {
            "fixed": "1.55.3"
        },
        {
            "introduced": "1.56.0"
        },
        {
            "last_affected": "1.56.0"
        }
    ],
    "cpe": [
        "cpe:2.3:a:grpc:grpc:*:*:*:*:*:-:*:*",
        "cpe:2.3:a:grpc:grpc:1.56.0:*:*:*:*:-:*:*"
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING"
    ]
}

Affected versions

1.*
1.56.0
v1.*
v1.55.0
v1.55.1

Database specific

vanir_signatures 
[
    {
        "target": {
            "file": "core/src/main/java/io/grpc/internal/GrpcUtil.java"
        },
        "id": "CVE-2023-4785-f337f5d8",
        "signature_type": "Line",
        "deprecated": false,
        "source": "https://github.com/grpc/grpc-java/commit/958205ddb1ab7ec1f5bb92a1a812cf30fa753c36",
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "148529735852666896963464408479363428299",
                "317277031500261825959216832225781396438",
                "121902372659488140859240128980598754188",
                "234477324359876819246199200915366156403"
            ],
            "threshold": 0.9
        }
    }
]
source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-4785.json"
vanir_signatures_modified 
"2026-07-15T01:36:18Z"