Vulnerability-Lookup

CNVD-2018-16495

Vulnerability from cnvd - Published: 2018-08-28

Title

Red Hat Libvirt拒绝服务漏洞（CNVD-2018-16495）

Description

Red Hat libvirt是美国红帽（Red Hat）公司的一个用于实现Linux虚拟化功能的Linux API，它支持各种Hypervisor，包括Xen和KVM，以及QEMU和用于其他操作系统的一些虚拟产品。 Red Hat Libvirt 2.5.0版本至3.0.0版本中存在安全漏洞。远程攻击者可利用该漏洞造成拒绝服务（空指针逆向引用和libvirtd守护进程崩溃）。

Severity

中

Patch Name

Red Hat Libvirt拒绝服务漏洞（CNVD-2018-16495）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://libvirt.org/git/?p=libvirt.git;a=commit;h=c3de387380f6057ee0e46cd9f2f0a092e8070875 h=c3de387380f6057ee0e46cd9f2f0a092e8070875

Reference

https://nvd.nist.gov/vuln/detail/CVE-2017-2635

Impacted products

Name
Red Hat libvirt >=2.5.0，<=3.0.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-2635"
    }
  },
  "description": "Red Hat libvirt\u662f\u7f8e\u56fd\u7ea2\u5e3d\uff08Red Hat\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u7528\u4e8e\u5b9e\u73b0Linux\u865a\u62df\u5316\u529f\u80fd\u7684Linux API\uff0c\u5b83\u652f\u6301\u5404\u79cdHypervisor\uff0c\u5305\u62ecXen\u548cKVM\uff0c\u4ee5\u53caQEMU\u548c\u7528\u4e8e\u5176\u4ed6\u64cd\u4f5c\u7cfb\u7edf\u7684\u4e00\u4e9b\u865a\u62df\u4ea7\u54c1\u3002\r\n\r\nRed Hat Libvirt 2.5.0\u7248\u672c\u81f33.0.0\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\u548clibvirtd\u5b88\u62a4\u8fdb\u7a0b\u5d29\u6e83\uff09\u3002",
  "discovererName": "Adam Mari\u0161",
  "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://libvirt.org/git/?p=libvirt.git;a=commit;h=c3de387380f6057ee0e46cd9f2f0a092e8070875 h=c3de387380f6057ee0e46cd9f2f0a092e8070875",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-16495",
  "openTime": "2018-08-28",
  "patchDescription": "Red Hat libvirt\u662f\u7f8e\u56fd\u7ea2\u5e3d\uff08Red Hat\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u7528\u4e8e\u5b9e\u73b0Linux\u865a\u62df\u5316\u529f\u80fd\u7684Linux API\uff0c\u5b83\u652f\u6301\u5404\u79cdHypervisor\uff0c\u5305\u62ecXen\u548cKVM\uff0c\u4ee5\u53caQEMU\u548c\u7528\u4e8e\u5176\u4ed6\u64cd\u4f5c\u7cfb\u7edf\u7684\u4e00\u4e9b\u865a\u62df\u4ea7\u54c1\u3002\r\n\r\nRed Hat Libvirt 2.5.0\u7248\u672c\u81f33.0.0\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\u548clibvirtd\u5b88\u62a4\u8fdb\u7a0b\u5d29\u6e83\uff09\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": "Red Hat Libvirt\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-16495\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Red Hat libvirt \u003e=2.5.0\uff0c\u003c=3.0.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2017-2635",
  "serverity": "\u4e2d",
  "submitTime": "2018-08-27",
  "title": "Red Hat Libvirt\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-16495\uff09"
}

CVE-2017-2635 (GCVE-0-2017-2635)

Vulnerability from cvelistv5 – Published: 2018-08-22 21:00 – Updated: 2024-08-05 14:02

Summary

A NULL pointer deference flaw was found in the way libvirt from 2.5.0 to 3.0.0 handled empty drives. A remote authenticated attacker could use this flaw to crash libvirtd daemon resulting in denial of service.

Severity

7.7 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CWE

CWE-476

Assigner

redhat redhat root

References

2 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_CONFIRM
https://libvirt.org/git/?p=libvirt.git%3Ba=commit…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
The libvirt Project	libvirt	Affected: from 2.5.0 to 3.0.0

Date Public

2017-02-09 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T14:02:06.995Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2635"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=c3de387380f6057ee0e46cd9f2f0a092e8070875"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "libvirt",
          "vendor": "The libvirt Project",
          "versions": [
            {
              "status": "affected",
              "version": "from 2.5.0 to 3.0.0"
            }
          ]
        }
      ],
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      "descriptions": [
        {
          "lang": "en",
          "value": "A NULL pointer deference flaw was found in the way libvirt from 2.5.0 to 3.0.0 handled empty drives. A remote authenticated attacker could use this flaw to crash libvirtd daemon resulting in denial of service."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.0"
          }
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      ],
      "problemTypes": [
        {
          "descriptions": [
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              "description": "CWE-476",
              "lang": "en",
              "type": "CWE"
            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2018-08-22T20:57:01.000Z",
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        "shortName": "redhat"
      },
      "references": [
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          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2635"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=c3de387380f6057ee0e46cd9f2f0a092e8070875"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2017-2635",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "libvirt",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "from 2.5.0 to 3.0.0"
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                },
                "vendor_name": "The libvirt Project"
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        "data_format": "MITRE",
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            }
          ]
        },
        "impact": {
          "cvss": [
            [
              {
                "vectorString": "7.7/CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
                "version": "3.0"
              }
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          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
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                  "value": "CWE-476"
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        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2635",
              "refsource": "CONFIRM",
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2635"
            },
            {
              "name": "https://libvirt.org/git/?p=libvirt.git;a=commit;h=c3de387380f6057ee0e46cd9f2f0a092e8070875",
              "refsource": "CONFIRM",
              "url": "https://libvirt.org/git/?p=libvirt.git;a=commit;h=c3de387380f6057ee0e46cd9f2f0a092e8070875"
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    "state": "PUBLISHED"
  },
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  "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.
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Action not permitted

CNVD-2018-16495

CVE-2017-2635 (GCVE-0-2017-2635)

Tags

Sightings

Nomenclature

Related by attack behaviour