CVE-2023-34188

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Source

https://cve.org/CVERecord?id=CVE-2023-34188

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-34188.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2023-34188

Downstream

DEBIAN-CVE-2023-34188

UBUNTU-CVE-2023-34188

Published

2023-06-23T00:00:00Z

Modified

2026-07-22T02:25:08.013667Z

Summary

[none]

Details

The HTTP server in Mongoose before 7.10 accepts requests containing negative Content-Length headers. By sending a single attack payload over TCP, an attacker can cause an infinite loop in which the server continuously reparses that payload, and does not respond to any other requests.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/34xxx/CVE-2023-34188.json",
    "cna_assigner": "mitre"
}

References

Affected packages

Git / github.com/cesanta/mongoose

Affected ranges

Type

GIT

Repo

https://github.com/cesanta/mongoose

Events

Introduced

Fixed

b379816178abdcd59135aa32f990a4b3bbbfb54b

Fixed

4663090a8fb036146dfe77718cff612b0101cb0f

Database specific

{
    "cpe": "cpe:2.3:a:cesanta:mongoose:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "7.10"
        }
    ]
}

Affected versions

3.*

3.2

3.3

3.4

3.5

3.6

3.7

3.8

4.*

4.0

4.1

5.*

5.0

5.1

5.2

5.3

5.4

5.5

5.5_20140120

5.6

6.*

6.0

6.1

6.10

6.11

6.12

6.13

6.14

6.15

6.16

6.17

6.18

6.2

6.3

6.4

6.5

6.6

6.7

6.9

7.*

7.0

7.1

7.2

7.3

7.4

7.5

7.6

7.7

7.8

Database specific

vanir_signatures_modified

"2026-07-22T02:25:08Z"

vanir_signatures

[
    {
        "signature_type": "Function",
        "target": {
            "file": "mongoose.c",
            "function": "mg_http_parse"
        },
        "deprecated": false,
        "source": "https://github.com/cesanta/mongoose/commit/4663090a8fb036146dfe77718cff612b0101cb0f",
        "id": "CVE-2023-34188-0b5ab165",
        "signature_version": "v1",
        "digest": {
            "function_hash": "22924329069955829796574876128538256974",
            "length": 1849.0
        }
    },
    {
        "signature_type": "Line",
        "target": {
            "file": "test/unit_test.c"
        },
        "deprecated": false,
        "source": "https://github.com/cesanta/mongoose/commit/4663090a8fb036146dfe77718cff612b0101cb0f",
        "id": "CVE-2023-34188-2d87afb1",
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "129576276661233070448620185355840971472",
                "98595833391322836779939114508353504194",
                "184857933725410272994378387566191224185",
                "158528054727880270501243412856776060789"
            ],
            "threshold": 0.9
        }
    },
    {
        "signature_type": "Function",
        "target": {
            "file": "test/unit_test.c",
            "function": "test_http_server"
        },
        "deprecated": false,
        "source": "https://github.com/cesanta/mongoose/commit/4663090a8fb036146dfe77718cff612b0101cb0f",
        "id": "CVE-2023-34188-56b35355",
        "signature_version": "v1",
        "digest": {
            "function_hash": "174471736489639667752347908931053555599",
            "length": 8772.0
        }
    },
    {
        "signature_type": "Line",
        "target": {
            "file": "src/http.c"
        },
        "deprecated": false,
        "source": "https://github.com/cesanta/mongoose/commit/4663090a8fb036146dfe77718cff612b0101cb0f",
        "id": "CVE-2023-34188-6aa83513",
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "336041179814736780083971292354306731754",
                "116630214407399927492574344093172757706",
                "125174433765152709460455876025853153304",
                "157787091326085411331468482148866876748"
            ],
            "threshold": 0.9
        }
    },
    {
        "signature_type": "Function",
        "target": {
            "file": "src/http.c",
            "function": "mg_http_parse"
        },
        "deprecated": false,
        "source": "https://github.com/cesanta/mongoose/commit/4663090a8fb036146dfe77718cff612b0101cb0f",
        "id": "CVE-2023-34188-9c0f860a",
        "signature_version": "v1",
        "digest": {
            "function_hash": "22924329069955829796574876128538256974",
            "length": 1849.0
        }
    },
    {
        "signature_type": "Line",
        "target": {
            "file": "mongoose.c"
        },
        "deprecated": false,
        "source": "https://github.com/cesanta/mongoose/commit/4663090a8fb036146dfe77718cff612b0101cb0f",
        "id": "CVE-2023-34188-f3401c9c",
        "signature_version": "v1",
        "digest": {
            "line_hashes": [
                "336041179814736780083971292354306731754",
                "116630214407399927492574344093172757706",
                "125174433765152709460455876025853153304",
                "157787091326085411331468482148866876748"
            ],
            "threshold": 0.9
        }
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-34188.json"