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"value": "XENMEM_populate_physmap en Xen v4.0, v4.1, y v4.2, y Citrix XenServer v6.0.2 y anteriores, cuando el modo de traducci\u00f3n de p\u00e1gina no se utiliza, permite a los kernels locales PV del SO invitado causar una denegaci\u00f3n de servicio (ca\u00edda del host) a trav\u00e9s flags inv\u00e1lidos como MEMF_populate_on_demand."}], "id": "CVE-2012-3496", "lastModified": "2024-11-21T01:40:59.807", "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, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": 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{"acknowledgement": "Red Hat would like to thank Xen project for reporting this issue. Upstream acknowledges Matthew Daley as the original reporter.", "bugzilla": {"description": "kernel: xen: XENMEM_populate_physmap DoS vulnerability", "id": "851172", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=851172"}, "csaw": false, "cvss": {"cvss_base_score": "5.5", "cvss_scoring_vector": "AV:A/AC:L/Au:S/C:N/I:N/A:C", "status": "draft"}, "details": ["XENMEM_populate_physmap in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when translating paging mode is not used, allows local PV OS guest kernels to cause a denial of service (BUG triggered and host crash) via invalid flags such as MEMF_populate_on_demand."], "name": "CVE-2012-3496", "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": "2012-09-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2012-3496\nhttps://nvd.nist.gov/vuln/detail/CVE-2012-3496"], "statement": "Not vulnerable.\nThis issue did not affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5.\nThis issue did not affect Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG as we did not have support for Xen hypervisor.", "threat_severity": "Moderate"}