CVE-2012-2121

{"id": "CVE-2012-2121", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.9, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "published": "2012-05-17T11:00:38.210", "references": [{"url": "http://rhn.redhat.com/errata/RHSA-2012-0676.html", "source": "secalert@redhat.com"}, {"url": "http://rhn.redhat.com/errata/RHSA-2012-0743.html", "source": "secalert@redhat.com"}, {"url": "http://secunia.com/advisories/50732", "source": "secalert@redhat.com"}, {"url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.4", "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2012/04/19/16", "source": "secalert@redhat.com"}, {"url": "http://www.securitytracker.com/id?1027083", "source": "secalert@redhat.com"}, {"url": "http://www.ubuntu.com/usn/USN-1577-1", "source": "secalert@redhat.com"}, {"url": "http://www.ubuntu.com/usn/USN-2036-1", "source": "secalert@redhat.com"}, {"url": "http://www.ubuntu.com/usn/USN-2037-1", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=814149", "source": "secalert@redhat.com"}, {"url": "https://github.com/torvalds/linux/commit/09ca8e1173bcb12e2a449698c9ae3b86a8a10195", "source": "secalert@redhat.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-264"}]}], "descriptions": [{"lang": "en", "value": "The KVM implementation in the Linux kernel before 3.3.4 does not properly manage the relationships between memory slots and the iommu, which allows guest OS users to cause a denial of service (memory leak and host OS crash) by leveraging administrative access to the guest OS to conduct hotunplug and hotplug operations on devices."}, {"lang": "es", "value": "La implementaci\u00f3n de KVM en el kernel de Linux en versiones anteriores a la v3.3.4 no gestiona correctamente la relaci\u00f3n entre las ranuras de memoria y el IOMMU, lo que permite causar una denegaci\u00f3n de servicio (ca\u00edda del sistema host) a los usuarios de sistemas operativos virtuales que funcionen bajo esa plataforma , aprovechandose del acceso de administraci\u00f3n a un sistema operativo invitado para llevar a cabo operaciones 'hotunplug' y 'hotplug' en los dispositivos."}], "lastModified": "2018-01-05T02:29:32.100", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6FF9F960-C2EA-4018-94CE-8D893CA8A7F9", "versionEndIncluding": "3.3.3"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}