Vulnerability-Lookup

CNVD-2022-61343

Vulnerability from cnvd - Published: 2022-09-02

Title

Open5Gs拒绝服务漏洞

Description

Open5Gs是一个5G Core和Epc的C语言开源实现，即Lte/Nr网络的核心网络。 Open5Gs 2.1.4版本的AMF存在拒绝服务漏洞，该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界。攻击者可利用此漏洞当Supi中的MSIN长度超过24个字符时，会导致AMF拒绝服务。

Severity

中

Patch Name

Open5Gs拒绝服务漏洞的补丁

Patch Description

Open5Gs是一个5G Core和Epc的C语言开源实现，即Lte/Nr网络的核心网络。 Open5Gs 2.1.4版本的AMF存在拒绝服务漏洞，该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界。攻击者可利用此漏洞当Supi中的MSIN长度超过24个字符时，会导致AMF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/open5gs/open5gs/issues/1206

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-44081

Impacted products

Name
Open5GS Open5GS 2.1.4

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-44081",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-44081"
    }
  },
  "description": "Open5Gs\u662f\u4e00\u4e2a5G Core\u548cEpc\u7684C\u8bed\u8a00\u5f00\u6e90\u5b9e\u73b0\uff0c\u5373Lte/Nr\u7f51\u7edc\u7684\u6838\u5fc3\u7f51\u7edc\u3002\n\nOpen5Gs 2.1.4\u7248\u672c\u7684AMF\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5728\u5185\u5b58\u4e0a\u6267\u884c\u64cd\u4f5c\u65f6\uff0c\u672a\u6b63\u786e\u9a8c\u8bc1\u6570\u636e\u8fb9\u754c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u5f53Supi\u4e2d\u7684MSIN\u957f\u5ea6\u8d85\u8fc724\u4e2a\u5b57\u7b26\u65f6\uff0c\u4f1a\u5bfc\u81f4AMF\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/open5gs/open5gs/issues/1206",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-61343",
  "openTime": "2022-09-02",
  "patchDescription": "Open5Gs\u662f\u4e00\u4e2a5G Core\u548cEpc\u7684C\u8bed\u8a00\u5f00\u6e90\u5b9e\u73b0\uff0c\u5373Lte/Nr\u7f51\u7edc\u7684\u6838\u5fc3\u7f51\u7edc\u3002\r\n\r\nOpen5Gs 2.1.4\u7248\u672c\u7684AMF\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u5728\u5185\u5b58\u4e0a\u6267\u884c\u64cd\u4f5c\u65f6\uff0c\u672a\u6b63\u786e\u9a8c\u8bc1\u6570\u636e\u8fb9\u754c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u5f53Supi\u4e2d\u7684MSIN\u957f\u5ea6\u8d85\u8fc724\u4e2a\u5b57\u7b26\u65f6\uff0c\u4f1a\u5bfc\u81f4AMF\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": "Open5Gs\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Open5GS Open5GS 2.1.4"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-44081",
  "serverity": "\u4e2d",
  "submitTime": "2022-03-31",
  "title": "Open5Gs\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2021-44081 (GCVE-0-2021-44081)

Vulnerability from cvelistv5 – Published: 2022-03-29 15:39 – Updated: 2024-08-04 04:10

Summary

A buffer overflow vulnerability exists in the AMF of open5gs 2.1.4. When the length of MSIN in Supi exceeds 24 characters, it leads to AMF denial of service.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

1 reference

URL	Tags
https://github.com/open5gs/open5gs/issues/1206	x_refsource_MISC

Show details on NVD website

JSON

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        "providerMetadata": {
          "dateUpdated": "2024-08-04T04:10:17.290Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/open5gs/open5gs/issues/1206"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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              "version": "n/a"
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        }
      ],
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          "value": "A buffer overflow vulnerability exists in the AMF of open5gs 2.1.4. When the length of MSIN in Supi exceeds 24 characters, it leads to AMF denial of service."
        }
      ],
      "problemTypes": [
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              "description": "n/a",
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        "dateUpdated": "2022-03-29T15:39:05.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/open5gs/open5gs/issues/1206"
        }
      ],
      "x_legacyV4Record": {
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          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-44081",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
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                "vendor_name": "n/a"
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            }
          ]
        }
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  },
  "cveMetadata": {
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    "assignerShortName": "mitre",
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    "datePublished": "2022-03-29T15:39:05.000Z",
    "dateReserved": "2021-11-22T00:00:00.000Z",
    "dateUpdated": "2024-08-04T04:10:17.290Z",
    "state": "PUBLISHED"
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}

Sightings

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Nomenclature

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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-2022-61343

CVE-2021-44081 (GCVE-0-2021-44081)

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