Vulnerability-Lookup

CNVD-2020-38782

Vulnerability from cnvd - Published: 2020-07-14

Title

FreeBSD拒绝服务漏洞（CNVD-2020-38782）

Description

FreeBSD是由Core Team团队负责的FreeBSD项目中的一套类Unix自由操作系统，是经过BSD、386BSD和4.4BSD发展而来的类Unix的一个重要分支。 FreeBSD 11.2-RELEASE之前版本中存在安全漏洞，该漏洞源于在默认情况下stack guard-page被禁用。攻击者可利用该漏洞绕过安全限制，执行任意代码。

Severity

高

Patch Name

FreeBSD拒绝服务漏洞（CNVD-2020-38782）的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： https://www.freebsd.org/

Reference

https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt

Impacted products

Name
Freebsd Freebsd <11.2-RELEASE

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-1083",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1083"
    }
  },
  "description": "FreeBSD\u662f\u7531Core Team\u56e2\u961f\u8d1f\u8d23\u7684FreeBSD\u9879\u76ee\u4e2d\u7684\u4e00\u5957\u7c7bUnix\u81ea\u7531\u64cd\u4f5c\u7cfb\u7edf\uff0c\u662f\u7ecf\u8fc7BSD\u3001386BSD\u548c4.4BSD\u53d1\u5c55\u800c\u6765\u7684\u7c7bUnix\u7684\u4e00\u4e2a\u91cd\u8981\u5206\u652f\u3002\n\nFreeBSD 11.2-RELEASE\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0bstack guard-page\u88ab\u7981\u7528\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\uff0c\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://www.freebsd.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-38782",
  "openTime": "2020-07-14",
  "patchDescription": "FreeBSD\u662f\u7531Core Team\u56e2\u961f\u8d1f\u8d23\u7684FreeBSD\u9879\u76ee\u4e2d\u7684\u4e00\u5957\u7c7bUnix\u81ea\u7531\u64cd\u4f5c\u7cfb\u7edf\uff0c\u662f\u7ecf\u8fc7BSD\u3001386BSD\u548c4.4BSD\u53d1\u5c55\u800c\u6765\u7684\u7c7bUnix\u7684\u4e00\u4e2a\u91cd\u8981\u5206\u652f\u3002\r\n\r\nFreeBSD 11.2-RELEASE\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0bstack guard-page\u88ab\u7981\u7528\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\uff0c\u6267\u884c\u4efb\u610f\u4ee3\u7801\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\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2020-38782\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Freebsd Freebsd \u003c11.2-RELEASE"
  },
  "referenceLink": "https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt",
  "serverity": "\u9ad8",
  "submitTime": "2018-09-21",
  "title": "FreeBSD\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2020-38782\uff09"
}

CVE-2017-1083 (GCVE-0-2017-1083)

Vulnerability from cvelistv5 – Published: 2018-09-12 14:00 – Updated: 2024-09-16 19:25

Summary

In FreeBSD before 11.2-RELEASE, a stack guard-page is available but is disabled by default. This results in the possibility a poorly written process could be cause a stack overflow.

Severity

No CVSS data available.

CWE

Userspace stack overflow

Assigner

freebsd mitre root Scorecard

References

1 reference

URL	Tags
https://www.qualys.com/2017/06/19/stack-clash/sta…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
FreeBSD	FreeBSD	Affected: before 11.2-RELEASE

Date Public

2017-06-19 00:00

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T13:25:17.104Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "FreeBSD",
          "vendor": "FreeBSD",
          "versions": [
            {
              "status": "affected",
              "version": "before 11.2-RELEASE"
            }
          ]
        }
      ],
      "datePublic": "2017-06-19T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "In FreeBSD before 11.2-RELEASE, a stack guard-page is available but is disabled by default. This results in the possibility a poorly written process could be cause a stack overflow."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Userspace stack overflow",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-09-12T13:57:01.000Z",
        "orgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
        "shortName": "freebsd"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "secteam@freebsd.org",
          "DATE_PUBLIC": "2017-06-19T00:00:00",
          "ID": "CVE-2017-1083",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "FreeBSD",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "before 11.2-RELEASE"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "FreeBSD"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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              "lang": "eng",
              "value": "In FreeBSD before 11.2-RELEASE, a stack guard-page is available but is disabled by default. This results in the possibility a poorly written process could be cause a stack overflow."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Userspace stack overflow"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt",
              "refsource": "MISC",
              "url": "https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
    "assignerShortName": "freebsd",
    "cveId": "CVE-2017-1083",
    "datePublished": "2018-09-12T14:00:00.000Z",
    "dateReserved": "2016-11-30T00:00:00.000Z",
    "dateUpdated": "2024-09-16T19:25:03.977Z",
    "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.
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-2020-38782

CVE-2017-1083 (GCVE-0-2017-1083)

Tags

Sightings

Nomenclature

Related by attack behaviour