CVE-2014-5146

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"value": "Ciertas operaciones de la virtualizaci\u00f3n MMU en Xen 4.2.x hasta 4.4.x anterior al patch xsa97-hap, cuando utiliza Hardware Assisted Paging (HAP), no son preferentes, lo que permite a hu\u00e9spedes locales HVM causar una denegaci\u00f3n de servicio (consumo de vcpu) mediante la invocaci\u00f3n de estas operaciones, las cuales procesan cada p\u00e1gina asignada a un hu\u00e9sped, una vulnerabilidad diferente a CVE-2014-5149."}], "id": "CVE-2014-5146", "lastModified": "2026-06-17T00:11:07.340", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 4.7, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, 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{"acknowledgement": "Red Hat would like to thank Xen project for reporting this issue.", "bugzilla": {"description": "xen: Long latency virtual-mmu operations are not preemptible (xsa-97)", "id": "1124350", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1124350"}, "csaw": false, "cvss": {"cvss_base_score": "4.3", "cvss_scoring_vector": "AV:A/AC:H/Au:S/C:N/I:N/A:C", "status": "draft"}, "details": ["Certain MMU virtualization operations in Xen 4.2.x through 4.4.x before the xsa97-hap patch, when using Hardware Assisted Paging (HAP), are not preemptible, which allows local HVM guest to cause a denial of service (vcpu consumption) by invoking these operations, which process every page assigned to a guest, a different vulnerability than CVE-2014-5149."], "name": "CVE-2014-5146", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel-xen", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2014-08-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2014-5146\nhttps://nvd.nist.gov/vuln/detail/CVE-2014-5146"], "statement": "Not vulnerable.\nThis issue does not affect the versions of the kernel-xen package as shipped\nwith Red Hat Enterprise Linux 5.", "threat_severity": "Moderate"}

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