Vulnerability-Lookup

CNVD-2018-09247

Vulnerability from cnvd - Published: 2018-05-10

Title

FreeBSD信息泄露漏洞（CNVD-2018-09247）

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 11.1-STABLE(r332066)之前版本和11.1-RELEASE-p10之前版本中存在安全漏洞，该漏洞源于程序未能充分的过滤复制到用户空间（网络子系统）的内存。本地攻击者可利用该漏洞访问部分特权内核数据。

Severity

低

Patch Name

FreeBSD信息泄露漏洞（CNVD-2018-09247）的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://www.freebsd.org/security/advisories/FreeBSD-EN-18:05.mem.asc

Reference

https://security.FreeBSD.org/advisories/FreeBSD-EN-18:05.mem.asc

Impacted products

Name
['FreeBSD FreeBSD <11.1-STABLE(r332066)', 'FreeBSD FreeBSD <11.1-RELEASE-p10']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-6921"
    }
  },
  "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\r\n\r\nFreeBSD 11.1-STABLE(r332066)\u4e4b\u524d\u7248\u672c\u548c11.1-RELEASE-p10\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5145\u5206\u7684\u8fc7\u6ee4\u590d\u5236\u5230\u7528\u6237\u7a7a\u95f4\uff08\u7f51\u7edc\u5b50\u7cfb\u7edf\uff09\u7684\u5185\u5b58\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8bbf\u95ee\u90e8\u5206\u7279\u6743\u5185\u6838\u6570\u636e\u3002",
  "discovererName": "Unknow",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://www.freebsd.org/security/advisories/FreeBSD-EN-18:05.mem.asc",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-09247",
  "openTime": "2018-05-10",
  "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 11.1-STABLE(r332066)\u4e4b\u524d\u7248\u672c\u548c11.1-RELEASE-p10\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5145\u5206\u7684\u8fc7\u6ee4\u590d\u5236\u5230\u7528\u6237\u7a7a\u95f4\uff08\u7f51\u7edc\u5b50\u7cfb\u7edf\uff09\u7684\u5185\u5b58\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8bbf\u95ee\u90e8\u5206\u7279\u6743\u5185\u6838\u6570\u636e\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\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2018-09247\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "FreeBSD FreeBSD \u003c11.1-STABLE(r332066)",
      "FreeBSD FreeBSD \u003c11.1-RELEASE-p10"
    ]
  },
  "referenceLink": "https://security.FreeBSD.org/advisories/FreeBSD-EN-18:05.mem.asc",
  "serverity": "\u4f4e",
  "submitTime": "2018-05-10",
  "title": "FreeBSD\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2018-09247\uff09"
}

CVE-2018-6921 (GCVE-0-2018-6921)

Vulnerability from cvelistv5 – Published: 2018-05-08 19:00 – Updated: 2024-09-17 02:02

Summary

In FreeBSD before 11.1-STABLE(r332066) and 11.1-RELEASE-p10, due to insufficient initialization of memory copied to userland in the network subsystem, small amounts of kernel memory may be disclosed to userland processes. Unprivileged authenticated local users may be able to access small amounts of privileged kernel data.

Severity

No CVSS data available.

CWE

Kernel memory disclosure

Assigner

freebsd mitre root Scorecard

References

2 references

URL	Tags
https://security.FreeBSD.org/advisories/FreeBSD-E…	x_refsource_CONFIRM
http://www.securityfocus.com/bid/104118	vdb-entryx_refsource_BID

Impacted products

1 product

Vendor	Product	Version
FreeBSD	FreeBSD	Affected: FreeBSD 11.x prior to 11.1-RELEASE-p10.

Date Public

2018-05-08 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T06:17:16.622Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.FreeBSD.org/advisories/FreeBSD-EN-18:05.mem.asc"
          },
          {
            "name": "104118",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/104118"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "FreeBSD",
          "vendor": "FreeBSD",
          "versions": [
            {
              "status": "affected",
              "version": "FreeBSD 11.x prior to 11.1-RELEASE-p10."
            }
          ]
        }
      ],
      "datePublic": "2018-05-08T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "In FreeBSD before 11.1-STABLE(r332066) and 11.1-RELEASE-p10, due to insufficient initialization of memory copied to userland in the network subsystem, small amounts of kernel memory may be disclosed to userland processes. Unprivileged authenticated local users may be able to access small amounts of privileged kernel data."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Kernel memory disclosure",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-05-10T09:57:01.000Z",
        "orgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
        "shortName": "freebsd"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.FreeBSD.org/advisories/FreeBSD-EN-18:05.mem.asc"
        },
        {
          "name": "104118",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/104118"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "secteam@freebsd.org",
          "DATE_PUBLIC": "2018-05-08T00:00:00",
          "ID": "CVE-2018-6921",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "FreeBSD",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "FreeBSD 11.x prior to 11.1-RELEASE-p10."
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "FreeBSD"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In FreeBSD before 11.1-STABLE(r332066) and 11.1-RELEASE-p10, due to insufficient initialization of memory copied to userland in the network subsystem, small amounts of kernel memory may be disclosed to userland processes. Unprivileged authenticated local users may be able to access small amounts of privileged kernel data."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Kernel memory disclosure"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://security.FreeBSD.org/advisories/FreeBSD-EN-18:05.mem.asc",
              "refsource": "CONFIRM",
              "url": "https://security.FreeBSD.org/advisories/FreeBSD-EN-18:05.mem.asc"
            },
            {
              "name": "104118",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/104118"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
    "assignerShortName": "freebsd",
    "cveId": "CVE-2018-6921",
    "datePublished": "2018-05-08T19:00:00.000Z",
    "dateReserved": "2018-02-12T00:00:00.000Z",
    "dateUpdated": "2024-09-17T02:02:12.617Z",
    "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-2018-09247

CVE-2018-6921 (GCVE-0-2018-6921)

Tags

Sightings

Nomenclature

Related by attack behaviour