Vulnerability-Lookup

CNVD-2021-38649

Vulnerability from cnvd - Published: 2021-06-02

Title

Cesanta MJS栈溢出漏洞（CNVD-2021-38649）

Description

Cesanta MJS是一个用于C/C++的嵌入式JavaScript引擎，专为资源有限的微控制器而设计。 Cesanta MJS 1.20.1版中的parse_mul_div_rem存在栈溢出漏洞。攻击者可通过特制文件利用该漏洞导致拒绝服务。

Severity

中

Patch Name

Cesanta MJS栈溢出漏洞（CNVD-2021-38649）的补丁

Patch Description

Cesanta MJS是一个用于C/C++的嵌入式JavaScript引擎，专为资源有限的微控制器而设计。 Cesanta MJS 1.20.1版中的parse_mul_div_rem存在栈溢出漏洞。攻击者可通过特制文件利用该漏洞导致拒绝服务。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/cesanta/mjs

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-36371

Impacted products

Name
Cesanta MJS 1.20.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-36371",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-36371"
    }
  },
  "description": "Cesanta MJS\u662f\u4e00\u4e2a\u7528\u4e8eC/C++\u7684\u5d4c\u5165\u5f0fJavaScript\u5f15\u64ce\uff0c\u4e13\u4e3a\u8d44\u6e90\u6709\u9650\u7684\u5fae\u63a7\u5236\u5668\u800c\u8bbe\u8ba1\u3002\n\nCesanta MJS 1.20.1\u7248\u4e2d\u7684parse_mul_div_rem\u5b58\u5728\u6808\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/cesanta/mjs",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-38649",
  "openTime": "2021-06-02",
  "patchDescription": "Cesanta MJS\u662f\u4e00\u4e2a\u7528\u4e8eC/C++\u7684\u5d4c\u5165\u5f0fJavaScript\u5f15\u64ce\uff0c\u4e13\u4e3a\u8d44\u6e90\u6709\u9650\u7684\u5fae\u63a7\u5236\u5668\u800c\u8bbe\u8ba1\u3002\r\n\r\nCesanta MJS 1.20.1\u7248\u4e2d\u7684parse_mul_div_rem\u5b58\u5728\u6808\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Cesanta MJS\u6808\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-38649\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Cesanta MJS 1.20.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-36371",
  "serverity": "\u4e2d",
  "submitTime": "2021-05-31",
  "title": "Cesanta MJS\u6808\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-38649\uff09"
}

CVE-2020-36371 (GCVE-0-2020-36371)

Vulnerability from cvelistv5 – Published: 2021-05-28 20:37 – Updated: 2024-08-04 17:23

Summary

Stack overflow vulnerability in parse_mul_div_rem Cesanta MJS 1.20.1, allows remote attackers to cause a Denial of Service (DoS) via a crafted file.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

1 reference

URL	Tags
https://github.com/cesanta/mjs/issues/136	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T17:23:10.442Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/cesanta/mjs/issues/136"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
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      ],
      "descriptions": [
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          "value": "Stack overflow vulnerability in parse_mul_div_rem Cesanta MJS 1.20.1, allows remote attackers to cause a Denial of Service (DoS) via a crafted file."
        }
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              "lang": "en",
              "type": "text"
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      ],
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        "dateUpdated": "2021-05-28T20:37:33.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/cesanta/mjs/issues/136"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-36371",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
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                          {
                            "version_value": "n/a"
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                        ]
                      }
                    }
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                },
                "vendor_name": "n/a"
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        "data_type": "CVE",
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        },
        "references": {
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            {
              "name": "https://github.com/cesanta/mjs/issues/136",
              "refsource": "MISC",
              "url": "https://github.com/cesanta/mjs/issues/136"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
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    "datePublished": "2021-05-28T20:37:33.000Z",
    "dateReserved": "2021-05-28T00:00:00.000Z",
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  },
  "dataType": "CVE_RECORD",
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}

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.

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-2021-38649

CVE-2020-36371 (GCVE-0-2020-36371)

Tags

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