Vulnerability-Lookup

CNVD-2021-25726

Vulnerability from cnvd - Published: 2021-04-08

Title

FreeBSD注入漏洞

Description

FreeBSD是Freebsd基金会的一套类Unix操作系统。 FreeBSD存在注入漏洞，攻击者可利用该漏洞导致驱动程序将大包的部分有效载荷误读为单独的包。

Severity

中

Patch Name

FreeBSD注入漏洞的补丁

Patch Description

FreeBSD是Freebsd基金会的一套类Unix操作系统。 FreeBSD存在注入漏洞，攻击者可利用该漏洞导致驱动程序将大包的部分有效载荷误读为单独的包。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

厂商已提供漏洞修补方案，请关注厂商主页及时更新： https://www.freebsd.org/security/advisories/FreeBSD-SA-20:27.ure.asc

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-7464

Impacted products

Name
['FreeBSD Freebsd 12.2-STABLE，<r365730', 'FreeBSD Freebsd 11.4-STABLE，<r365738', 'FreeBSD Freebsd 12.1-RELEASE，<p10', 'FreeBSD Freebsd 11.4-RELEASE，<p4', 'FreeBSD Freebsd 11.3-RELEASE，<p14']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-7464",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-7464"
    }
  },
  "description": "FreeBSD\u662fFreebsd\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u7c7bUnix\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nFreeBSD\u5b58\u5728\u6ce8\u5165\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u9a71\u52a8\u7a0b\u5e8f\u5c06\u5927\u5305\u7684\u90e8\u5206\u6709\u6548\u8f7d\u8377\u8bef\u8bfb\u4e3a\u5355\u72ec\u7684\u5305\u3002",
  "formalWay": "\u5382\u5546\u5df2\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u8865\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u53ca\u65f6\u66f4\u65b0\uff1a\r\nhttps://www.freebsd.org/security/advisories/FreeBSD-SA-20:27.ure.asc",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-25726",
  "openTime": "2021-04-08",
  "patchDescription": "FreeBSD\u662fFreebsd\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u7c7bUnix\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nFreeBSD\u5b58\u5728\u6ce8\u5165\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u9a71\u52a8\u7a0b\u5e8f\u5c06\u5927\u5305\u7684\u90e8\u5206\u6709\u6548\u8f7d\u8377\u8bef\u8bfb\u4e3a\u5355\u72ec\u7684\u5305\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": "FreeBSD\u6ce8\u5165\u6f0f\u6d1e \u7684\u8865\u4e01",
  "products": {
    "product": [
      "FreeBSD Freebsd 12.2-STABLE\uff0c\u003cr365730",
      "FreeBSD Freebsd 11.4-STABLE\uff0c\u003cr365738",
      "FreeBSD Freebsd 12.1-RELEASE\uff0c\u003cp10",
      "FreeBSD Freebsd 11.4-RELEASE\uff0c\u003cp4",
      "FreeBSD Freebsd 11.3-RELEASE\uff0c\u003cp14"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-7464",
  "serverity": "\u4e2d",
  "submitTime": "2021-04-01",
  "title": "FreeBSD\u6ce8\u5165\u6f0f\u6d1e"
}

CVE-2020-7464 (GCVE-0-2020-7464)

Vulnerability from cvelistv5 – Published: 2021-03-26 20:55 – Updated: 2024-08-04 09:33

Summary

In FreeBSD 12.2-STABLE before r365730, 11.4-STABLE before r365738, 12.1-RELEASE before p10, 11.4-RELEASE before p4, and 11.3-RELEASE before p14, a programming error in the ure(4) device driver caused some Realtek USB Ethernet interfaces to incorrectly report packets with more than 2048 bytes in a single USB transfer as having a length of only 2048 bytes. An adversary can exploit this to cause the driver to misinterpret part of the payload of a large packet as a separate packet, and thereby inject packets across security boundaries such as VLANs.

Severity

No CVSS data available.

CWE

Improper Calculation of Buffer Size

Assigner

freebsd mitre root Scorecard

References

1 reference

URL	Tags
https://security.FreeBSD.org/advisories/FreeBSD-S…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	FreeBSD	Affected: FreeBSD 12.1-RELEASE before p10, 11.4-RELEASE before p4, 11.3-RELEASE before p14

Show details on NVD website

JSON

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          "dateUpdated": "2024-08-04T09:33:18.651Z",
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            "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:27.ure.asc"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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        {
          "product": "FreeBSD",
          "vendor": "n/a",
          "versions": [
            {
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              "version": "FreeBSD 12.1-RELEASE before p10, 11.4-RELEASE before p4, 11.3-RELEASE before p14"
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        }
      ],
      "problemTypes": [
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            {
              "description": "Improper Calculation of Buffer Size",
              "lang": "en",
              "type": "text"
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      ],
      "providerMetadata": {
        "dateUpdated": "2021-03-26T20:55:25.000Z",
        "orgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
        "shortName": "freebsd"
      },
      "references": [
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          "tags": [
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          ],
          "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:27.ure.asc"
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    "dateUpdated": "2024-08-04T09:33:18.651Z",
    "state": "PUBLISHED"
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CNVD-2021-25726

CVE-2020-7464 (GCVE-0-2020-7464)

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Related by attack behaviour