GSD-2018-5244

Vulnerability from gsd - Updated: 2023-12-13 01:22
Details
In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service (host OS memory consumption) by rebooting many times.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2018-5244",
    "description": "In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn\u0027t freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service (host OS memory consumption) by rebooting many times.",
    "id": "GSD-2018-5244",
    "references": [
      "https://www.suse.com/security/cve/CVE-2018-5244.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2018-5244"
      ],
      "details": "In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn\u0027t freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service (host OS memory consumption) by rebooting many times.",
      "id": "GSD-2018-5244",
      "modified": "2023-12-13T01:22:40.094051Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2018-5244",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
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                          "version_value": "n/a"
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                      ]
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          }
        ]
      },
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                "value": "n/a"
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      },
      "references": {
        "reference_data": [
          {
            "name": "GLSA-201810-06",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/201810-06"
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          {
            "name": "102433",
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            "url": "http://www.securitytracker.com/id/1040774"
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            "url": "https://xenbits.xen.org/xsa/advisory-253.html"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionStartIncluding": "4.10.0",
                "vulnerable": true
              }
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        "description": {
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              "value": "In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn\u0027t freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service (host OS memory consumption) by rebooting many times."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
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            },
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              "tags": [],
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        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 4.9,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 6.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.0"
          },
          "exploitabilityScore": 2.0,
          "impactScore": 4.0
        }
      },
      "lastModifiedDate": "2018-10-31T10:32Z",
      "publishedDate": "2018-01-05T18:29Z"
    }
  }
}



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