Vulnerability-Lookup

CNVD-2018-26666

Vulnerability from cnvd - Published: 2018-12-26

Title

FreeBSD NFS服务器代码缺陷漏洞（CNVD-2018-26666）

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。NFS server是其中的一个网络文件系统服务器。 FreeBSD 11.2-STABLE(r340854)之前版本和11.2-RELEASE-p5之前版本中的NFS服务器代码存在安全漏洞，该漏洞源于程序未能对READDIRPLUS NFS请求执行边界检测。远程攻击者可利用该漏洞造成资源耗尽。

Severity

高

Patch Name

FreeBSD NFS服务器代码缺陷漏洞（CNVD-2018-26666）的补丁

Patch Description

Formal description

厂商已发布漏洞修复程序，请及时关注更新： https://www.freebsd.org/security/advisories/FreeBSD-SA-18:13.nfs.asc

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-17159

Impacted products

Name
['FreeBSD FreeBSD <11.2-RELEASE-p5', 'FreeBSD FreeBSD <11.2-STABLE(r340854)']

Show details on source website

JSON

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{
  "bids": {
    "bid": {
      "bidNumber": "106192"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-17159"
    }
  },
  "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\u3002NFS server\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u7f51\u7edc\u6587\u4ef6\u7cfb\u7edf\u670d\u52a1\u5668\u3002\n\nFreeBSD 11.2-STABLE(r340854)\u4e4b\u524d\u7248\u672c\u548c11.2-RELEASE-p5\u4e4b\u524d\u7248\u672c\u4e2d\u7684NFS\u670d\u52a1\u5668\u4ee3\u7801\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5bf9READDIRPLUS NFS\u8bf7\u6c42\u6267\u884c\u8fb9\u754c\u68c0\u6d4b\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u8d44\u6e90\u8017\u5c3d\u3002",
  "discovererName": "Jakub Jirasek and Secunia Research.",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.freebsd.org/security/advisories/FreeBSD-SA-18:13.nfs.asc",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-26666",
  "openTime": "2018-12-26",
  "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\u3002NFS server\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u7f51\u7edc\u6587\u4ef6\u7cfb\u7edf\u670d\u52a1\u5668\u3002\r\n\r\nFreeBSD 11.2-STABLE(r340854)\u4e4b\u524d\u7248\u672c\u548c11.2-RELEASE-p5\u4e4b\u524d\u7248\u672c\u4e2d\u7684NFS\u670d\u52a1\u5668\u4ee3\u7801\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5bf9READDIRPLUS NFS\u8bf7\u6c42\u6267\u884c\u8fb9\u754c\u68c0\u6d4b\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u8d44\u6e90\u8017\u5c3d\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 NFS\u670d\u52a1\u5668\u4ee3\u7801\u7f3a\u9677\u6f0f\u6d1e\uff08CNVD-2018-26666\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "FreeBSD FreeBSD \u003c11.2-RELEASE-p5",
      "FreeBSD FreeBSD \u003c11.2-STABLE(r340854)"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-17159",
  "serverity": "\u9ad8",
  "submitTime": "2018-11-28",
  "title": "FreeBSD NFS\u670d\u52a1\u5668\u4ee3\u7801\u7f3a\u9677\u6f0f\u6d1e\uff08CNVD-2018-26666\uff09"
}

CVE-2018-17159 (GCVE-0-2018-17159)

Vulnerability from cvelistv5 – Published: 2018-12-04 15:00 – Updated: 2024-08-05 10:39

Summary

In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, the NFS server lacks a bounds check in the READDIRPLUS NFS request. Unprivileged remote users with access to the NFS server can cause a resource exhaustion by forcing the server to allocate an arbitrarily large memory allocation.

Severity

No CVSS data available.

CWE

Kernel improper bounds checking

Assigner

freebsd mitre root

References

4 references

URL	Tags
http://www.securityfocus.com/bid/106192	vdb-entryx_refsource_BID
https://security.freebsd.org/advisories/FreeBSD-S…	vendor-advisoryx_refsource_FREEBSD
http://www.securitytracker.com/id/1042164	vdb-entryx_refsource_SECTRACK
https://secuniaresearch.flexerasoftware.com/secun…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
FreeBSD	FreeBSD	Affected: FreeBSD 11.2 before 11.2-RELEASE-p5

Date Public

2018-12-04 00:00

Show details on NVD website

JSON

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{
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          "dateUpdated": "2024-08-05T10:39:59.559Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
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            "tags": [
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              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/106192"
          },
          {
            "name": "FreeBSD-SA-18:13",
            "tags": [
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              "x_refsource_FREEBSD",
              "x_transferred"
            ],
            "url": "https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.asc"
          },
          {
            "name": "1042164",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
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          },
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            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://secuniaresearch.flexerasoftware.com/secunia_research/2018-24/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "FreeBSD",
          "vendor": "FreeBSD",
          "versions": [
            {
              "status": "affected",
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            }
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        }
      ],
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        }
      ],
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            }
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      ],
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        "dateUpdated": "2018-12-13T10:57:01.000Z",
        "orgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
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      },
      "references": [
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          ],
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        },
        {
          "name": "FreeBSD-SA-18:13",
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          ],
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        },
        {
          "name": "1042164",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1042164"
        },
        {
          "tags": [
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          ],
          "url": "https://secuniaresearch.flexerasoftware.com/secunia_research/2018-24/"
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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-2018-26666

CVE-2018-17159 (GCVE-0-2018-17159)

Tags

Sightings

Nomenclature

Related by attack behaviour