Vulnerability-Lookup

CNVD-2024-34384

Vulnerability from cnvd - Published: 2024-08-02

Title

Cesanta MJS拒绝服务漏洞（CNVD-2024-34384）

Description

Cesanta MJS是爱尔兰Cesanta公司的一个用于C/C++的嵌入式JavaScript引擎。专为资源有限的微控制器而设计。主要设计目标是占用空间小和简单的C/C++互操作性。 Cesanta MJS存在拒绝服务漏洞，攻击者可利用该漏洞通过msj.c文件中的mjs_op_json_stringify函数造成拒绝服务。

Severity

高

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://github.com/cesanta/mjs/issues/256

Reference

https://nvd.nist.gov/vuln/detail/CVE-2023-49552

Impacted products

Name
Cesanta Cesanta MJS 2.20.0

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2023-49552",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2023-49552"
    }
  },
  "description": "Cesanta MJS\u662f\u7231\u5c14\u5170Cesanta\u516c\u53f8\u7684\u4e00\u4e2a\u7528\u4e8eC/C++\u7684\u5d4c\u5165\u5f0fJavaScript\u5f15\u64ce\u3002\u4e13\u4e3a\u8d44\u6e90\u6709\u9650\u7684\u5fae\u63a7\u5236\u5668\u800c\u8bbe\u8ba1\u3002\u4e3b\u8981\u8bbe\u8ba1\u76ee\u6807\u662f\u5360\u7528\u7a7a\u95f4\u5c0f\u548c\u7b80\u5355\u7684C/C++\u4e92\u64cd\u4f5c\u6027\u3002\n\nCesanta MJS\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7msj.c\u6587\u4ef6\u4e2d\u7684mjs_op_json_stringify\u51fd\u6570\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://github.com/cesanta/mjs/issues/256",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2024-34384",
  "openTime": "2024-08-02",
  "products": {
    "product": "Cesanta Cesanta MJS 2.20.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2023-49552",
  "serverity": "\u9ad8",
  "submitTime": "2024-01-08",
  "title": "Cesanta MJS\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2024-34384\uff09"
}

CVE-2023-49552 (GCVE-0-2023-49552)

Vulnerability from cvelistv5 – Published: 2024-01-02 00:00 – Updated: 2025-04-17 18:39

Summary

An Out of Bounds Write in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_stringify function in the msj.c file.

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: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-01-08 16:55 UTC

CWE

n/a
CWE-787 - Out-of-bounds Write

Assigner

mitre mitre root

References

1 reference

URL	Tags
https://github.com/cesanta/mjs/issues/256

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T22:01:24.764Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/cesanta/mjs/issues/256"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-49552",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-01-08T16:55:19.278934Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-787",
                "description": "CWE-787 Out-of-bounds Write",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-17T18:39:48.684Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An Out of Bounds Write in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_stringify function in the msj.c file."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-01-02T22:36:40.168Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/cesanta/mjs/issues/256"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2023-49552",
    "datePublished": "2024-01-02T00:00:00.000Z",
    "dateReserved": "2023-11-27T00:00:00.000Z",
    "dateUpdated": "2025-04-17T18:39:48.684Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.
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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.

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.
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CNVD-2024-34384

CVE-2023-49552 (GCVE-0-2023-49552)

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