Vulnerability-Lookup

CNVD-2019-07947

Vulnerability from cnvd - Published: 2019-03-22

Title

Xen拒绝服务和权限提升漏洞

Description

Xen是一个开源虚拟机监视器，由Xen Project开发。 Xen 4.11存在拒绝服务和权限提升漏洞，该漏洞源于未能对x86 IOREQ服务器资源记帐（用于外部仿真器）进行正确处理，HVM客户端操作系统用户可利用该漏洞导致拒绝服务（主机操作系统崩溃）或可能获得主机操作系统权限。

Severity

中

Patch Name

Xen拒绝服务和权限提升漏洞的补丁

Patch Description

Xen是一个开源虚拟机监视器，由Xen Project开发。 Xen 4.11存在拒绝服务和权限提升漏洞，该漏洞源于未能对x86 IOREQ服务器资源记帐（用于外部仿真器）进行正确处理，HVM客户端操作系统用户可利用该漏洞导致拒绝服务（主机操作系统崩溃）或可能获得主机操作系统权限。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://xenbits.xen.org/xsa/advisory-276.html

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-19963

Impacted products

Name
Xen Xen 4.11

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-19963"
    }
  },
  "description": "Xen\u662f\u4e00\u4e2a\u5f00\u6e90\u865a\u62df\u673a\u76d1\u89c6\u5668\uff0c\u7531Xen Project\u5f00\u53d1\u3002\n\nXen 4.11\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u548c\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u80fd\u5bf9x86 IOREQ\u670d\u52a1\u5668\u8d44\u6e90\u8bb0\u5e10\uff08\u7528\u4e8e\u5916\u90e8\u4eff\u771f\u5668\uff09\u8fdb\u884c\u6b63\u786e\u5904\u7406\uff0cHVM\u5ba2\u6237\u7aef\u64cd\u4f5c\u7cfb\u7edf\u7528\u6237\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u4e3b\u673a\u64cd\u4f5c\u7cfb\u7edf\u5d29\u6e83\uff09\u6216\u53ef\u80fd\u83b7\u5f97\u4e3b\u673a\u64cd\u4f5c\u7cfb\u7edf\u6743\u9650\u3002",
  "discovererName": "Paul Durrant, Matthew Daley, Julien Grall, the security team",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://xenbits.xen.org/xsa/advisory-276.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-07947",
  "openTime": "2019-03-22",
  "patchDescription": "Xen\u662f\u4e00\u4e2a\u5f00\u6e90\u865a\u62df\u673a\u76d1\u89c6\u5668\uff0c\u7531Xen Project\u5f00\u53d1\u3002\r\n\r\nXen 4.11\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u548c\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u80fd\u5bf9x86 IOREQ\u670d\u52a1\u5668\u8d44\u6e90\u8bb0\u5e10\uff08\u7528\u4e8e\u5916\u90e8\u4eff\u771f\u5668\uff09\u8fdb\u884c\u6b63\u786e\u5904\u7406\uff0cHVM\u5ba2\u6237\u7aef\u64cd\u4f5c\u7cfb\u7edf\u7528\u6237\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u4e3b\u673a\u64cd\u4f5c\u7cfb\u7edf\u5d29\u6e83\uff09\u6216\u53ef\u80fd\u83b7\u5f97\u4e3b\u673a\u64cd\u4f5c\u7cfb\u7edf\u6743\u9650\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": "Xen\u62d2\u7edd\u670d\u52a1\u548c\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Xen Xen 4.11"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-19963",
  "serverity": "\u4e2d",
  "submitTime": "2018-12-10",
  "title": "Xen\u62d2\u7edd\u670d\u52a1\u548c\u6743\u9650\u63d0\u5347\u6f0f\u6d1e"
}

CVE-2018-19963 (GCVE-0-2018-19963)

Vulnerability from cvelistv5 – Published: 2018-12-08 04:00 – Updated: 2024-08-05 11:51

Summary

An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because x86 IOREQ server resource accounting (for external emulators) was mishandled.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://xenbits.xen.org/xsa/advisory-276.html	x_refsource_MISC
http://www.securityfocus.com/bid/106182	vdb-entryx_refsource_BID

Date Public

2018-12-07 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T11:51:17.938Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
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            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://xenbits.xen.org/xsa/advisory-276.html"
          },
          {
            "name": "106182",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/106182"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
            }
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        }
      ],
      "datePublic": "2018-12-07T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-12-13T10:57:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://xenbits.xen.org/xsa/advisory-276.html"
        },
        {
          "name": "106182",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/106182"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-19963",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
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                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
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        "data_version": "4.0",
        "description": {
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            }
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        },
        "problemtype": {
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                  "value": "n/a"
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        },
        "references": {
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            {
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              "url": "https://xenbits.xen.org/xsa/advisory-276.html"
            },
            {
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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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    "dateReserved": "2018-12-07T00:00:00.000Z",
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    "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.

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Action not permitted

CNVD-2019-07947

CVE-2018-19963 (GCVE-0-2018-19963)

Tags

Sightings

Nomenclature

Related by attack behaviour