CVE-2015-7970

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"http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html"}, {"name": "GLSA-201604-03", "tags": ["vendor-advisory", "x_refsource_GENTOO"], "url": "https://security.gentoo.org/glsa/201604-03"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2015-7970", "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": "The p2m_pod_emergency_sweep function in arch/x86/mm/p2m-pod.c in Xen 3.4.x, 3.5.x, and 3.6.x is not preemptible, which allows local x86 HVM guest administrators to cause a denial of service (CPU consumption and possibly reboot) via crafted memory contents that triggers a \"time-consuming linear scan,\" related to Populate-on-Demand."}]}, "problemtype": 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"http://xenbits.xen.org/xsa/advisory-150.html"}, {"name": "DSA-3414", "refsource": "DEBIAN", "url": "http://www.debian.org/security/2015/dsa-3414"}, {"name": "FEDORA-2015-6f6b79efe2", "refsource": "FEDORA", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html"}, {"name": "GLSA-201604-03", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/201604-03"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T08:06:31.452Z"}, "title": "CVE Program Container", "references": [{"name": "77362", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/77362"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://support.citrix.com/article/CTX202404"}, {"name": "FEDORA-2015-242be2c240", "tags": ["vendor-advisory", "x_refsource_FEDORA", "x_transferred"], "url": 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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:xen:xen:3.4.0:*:*:*:*:*:*:*", "matchCriteriaId": "7F7D1B7E-C30F-430F-832D-2A405DA1F2D9", "vulnerable": true}, {"criteria": "cpe:2.3:o:xen:xen:3.4.1:*:*:*:*:*:*:*", "matchCriteriaId": "B7C1D0AD-B804-474C-96A3-988BADA0DAD2", "vulnerable": true}, {"criteria": "cpe:2.3:o:xen:xen:3.4.2:*:*:*:*:*:*:*", "matchCriteriaId": "1DCD1F05-9F96-40DD-B506-750E87306325", "vulnerable": true}, {"criteria": "cpe:2.3:o:xen:xen:3.4.3:*:*:*:*:*:*:*", "matchCriteriaId": "25B6AE42-E1EB-47A8-8FAF-7A93A67EC67F", "vulnerable": true}, {"criteria": "cpe:2.3:o:xen:xen:3.4.4:*:*:*:*:*:*:*", "matchCriteriaId": "60BADA43-94D5-4E80-B5C8-D01A0249F13E", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The p2m_pod_emergency_sweep function in arch/x86/mm/p2m-pod.c in Xen 3.4.x, 3.5.x, and 3.6.x is not preemptible, which allows local x86 HVM guest administrators to cause a denial of service (CPU consumption and possibly reboot) via crafted memory contents that triggers a \"time-consuming linear scan,\" related to Populate-on-Demand."}, {"lang": "es", "value": "La funci\u00f3n p2m_pod_emergency_sweep en arch/x86/mm/p2m-pod.c en Xen 3.4.x, 3.5,x y 3.6.x no es preferente, lo que permite a administradores invitados x86 HVM locales provocar una denegaci\u00f3n de servicio (consumo de CPU y posiblemente reinicio) a trav\u00e9s de contenidos de memoria manipulados que desencadena un 'time-consuming linear scan', relacionado con Populate-on-Demand."}], "id": "CVE-2015-7970", "lastModified": "2026-06-17T00:33:27.860", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"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, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2015-10-30T15:59:06.967", "references": [{"source": "cve@mitre.org", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html"}, {"source": "cve@mitre.org", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html"}, {"source": "cve@mitre.org", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html"}, {"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html"}, {"source": "cve@mitre.org", "url": "http://support.citrix.com/article/CTX202404"}, {"source": "cve@mitre.org", "url": "http://www.debian.org/security/2015/dsa-3414"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/bid/77362"}, {"source": "cve@mitre.org", "url": "http://www.securitytracker.com/id/1034034"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://xenbits.xen.org/xsa/advisory-150.html"}, {"source": "cve@mitre.org", "url": "https://security.gentoo.org/glsa/201604-03"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://support.citrix.com/article/CTX202404"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.debian.org/security/2015/dsa-3414"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/77362"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securitytracker.com/id/1034034"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://xenbits.xen.org/xsa/advisory-150.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.gentoo.org/glsa/201604-03"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-399"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "xen: Long latency populate-on-demand operation is not preemptible on x86", "id": "1272529", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1272529"}, "csaw": false, "details": ["The p2m_pod_emergency_sweep function in arch/x86/mm/p2m-pod.c in Xen 3.4.x, 3.5.x, and 3.6.x is not preemptible, which allows local x86 HVM guest administrators to cause a denial of service (CPU consumption and possibly reboot) via crafted memory contents that triggers a \"time-consuming linear scan,\" related to Populate-on-Demand."], "mitigation": {"lang": "en:us", "value": "Running only PV guests will avoid this issue. Running HVM guest without enabling Populate-on-Demand mode (so, ensuring that maxmem==memory) will avoid this issue."}, "name": "CVE-2015-7970", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "xen", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2015-10-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2015-7970\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-7970\nhttp://xenbits.xen.org/xsa/advisory-150.html"], "threat_severity": "Moderate"}

{}