gsd-2018-7540
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.
Aliases
Aliases
CVE-2018-7540


To clipboard 

{
  "GSD": {
    "alias": "CVE-2018-7540",
    "description": "An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.",
    "id": "GSD-2018-7540",
    "references": [
      "https://www.suse.com/security/cve/CVE-2018-7540.html",
      "https://www.debian.org/security/2018/dsa-4131",
      "https://linux.oracle.com/cve/CVE-2018-7540.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2018-7540"
      ],
      "details": "An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.",
      "id": "GSD-2018-7540",
      "modified": "2023-12-13T01:22:32.584878Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2018-7540",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://xenbits.xen.org/xsa/advisory-252.html",
            "refsource": "CONFIRM",
            "url": "https://xenbits.xen.org/xsa/advisory-252.html"
          },
          {
            "name": "GLSA-201810-06",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/201810-06"
          },
          {
            "name": "1040773",
            "refsource": "SECTRACK",
            "url": "http://www.securitytracker.com/id/1040773"
          },
          {
            "name": "[debian-lts-announce] 20181112 [SECURITY] [DLA 1577-1] xen security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html"
          },
          {
            "name": "[debian-lts-announce] 20180306 [SECURITY] [DLA 1300-1] xen security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2018/03/msg00003.html"
          },
          {
            "name": "103174",
            "refsource": "BID",
            "url": "http://www.securityfocus.com/bid/103174"
          },
          {
            "name": "DSA-4131",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2018/dsa-4131"
          },
          {
            "name": "https://support.citrix.com/article/CTX232655",
            "refsource": "CONFIRM",
            "url": "https://support.citrix.com/article/CTX232655"
          },
          {
            "name": "https://support.citrix.com/article/CTX232096",
            "refsource": "CONFIRM",
            "url": "https://support.citrix.com/article/CTX232096"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "4.10.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-7540"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-400"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://xenbits.xen.org/xsa/advisory-252.html",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://xenbits.xen.org/xsa/advisory-252.html"
            },
            {
              "name": "DSA-4131",
              "refsource": "DEBIAN",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://www.debian.org/security/2018/dsa-4131"
            },
            {
              "name": "[debian-lts-announce] 20180306 [SECURITY] [DLA 1300-1] xen security update",
              "refsource": "MLIST",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2018/03/msg00003.html"
            },
            {
              "name": "https://support.citrix.com/article/CTX232655",
              "refsource": "CONFIRM",
              "tags": [],
              "url": "https://support.citrix.com/article/CTX232655"
            },
            {
              "name": "103174",
              "refsource": "BID",
              "tags": [],
              "url": "http://www.securityfocus.com/bid/103174"
            },
            {
              "name": "https://support.citrix.com/article/CTX232096",
              "refsource": "CONFIRM",
              "tags": [],
              "url": "https://support.citrix.com/article/CTX232096"
            },
            {
              "name": "1040773",
              "refsource": "SECTRACK",
              "tags": [],
              "url": "http://www.securitytracker.com/id/1040773"
            },
            {
              "name": "GLSA-201810-06",
              "refsource": "GENTOO",
              "tags": [],
              "url": "https://security.gentoo.org/glsa/201810-06"
            },
            {
              "name": "[debian-lts-announce] 20181112 [SECURITY] [DLA 1577-1] xen security update",
              "refsource": "MLIST",
              "tags": [],
              "url": "https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html"
            }
          ]
        }
      },
      "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": "2018-11-13T11:29Z",
      "publishedDate": "2018-02-27T19:29Z"
    }
  }
}


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