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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "AC33A364-C033-4D35-A59F-CF3F29DEF1F5", "versionEndIncluding": "3.1.9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.1.1:*:*:*:*:*:*:*", "matchCriteriaId": "B155BBDF-6DF6-4FF5-9C41-D8A5266DCC67", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.1.2:*:*:*:*:*:*:*", "matchCriteriaId": "28476DEC-9630-4B40-9D4D-9BC151DC4CA4", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.1.3:*:*:*:*:*:*:*", "matchCriteriaId": "5646880A-2355-4BDD-89E7-825863A0311F", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.1.4:*:*:*:*:*:*:*", "matchCriteriaId": "7FF99148-267A-46F8-9927-A9082269BAF6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.1.5:*:*:*:*:*:*:*", "matchCriteriaId": "A783C083-5D9C-48F9-B5A6-A97A9604FB19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.1.6:*:*:*:*:*:*:*", "matchCriteriaId": "2B817A24-03AC-46CD-BEFA-505457FD2A5D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.1.7:*:*:*:*:*:*:*", "matchCriteriaId": "51CF1BCE-090E-4B70-BA16-ACB74411293B", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.1.8:*:*:*:*:*:*:*", "matchCriteriaId": "187AAD67-10D7-4B57-B4C6-00443E246AF3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The kvm_vm_ioctl_assign_device function in virt/kvm/assigned-dev.c in the KVM subsystem in the Linux kernel before 3.1.10 does not verify permission to access PCI configuration space and BAR resources, which allows host OS users to assign PCI devices and cause a denial of service (host OS crash) via a KVM_ASSIGN_PCI_DEVICE operation."}, {"lang": "es", "value": "La funci\u00f3n kvm_vm_ioctl_assign_device en virt/kvm/assigned-dev.c de los subsistemas KVM en los kernel Linux anteriores a v3.1.10 no verifica los permisos de acceso al espacio de configuraci\u00f3n PCI y recursos BAR, permitiendo que usuarios del SO asignen dispositivos PCI y provoquen una denegaci\u00f3n del servicio (parada del SO) mediante una operaci\u00f3n KVM_ASSIGN_PCI_DEVICE."}], "id": "CVE-2011-4347", "lastModified": "2025-04-11T00:51:21.963", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "HIGH", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:H/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 1.9, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2013-06-08T13:05:55.517", "references": [{"source": "secalert@redhat.com", "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.10"}, {"source": "secalert@redhat.com", "url": "http://www.openwall.com/lists/oss-security/2011/11/24/7"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=756084"}, {"source": "secalert@redhat.com", "url": "https://github.com/torvalds/linux/commit/c4e7f9022e506c6635a5037713c37118e23193e4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.10"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2011/11/24/7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=756084"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/torvalds/linux/commit/c4e7f9022e506c6635a5037713c37118e23193e4"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-264"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Sasha Levin for reporting this issue.", "affected_release": [{"advisory": "RHSA-2012:0149", "cpe": "cpe:/a:redhat:rhel_virtualization:5", "package": "kvm-0:83-249.el5", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2012-02-21T00:00:00Z"}, {"advisory": "RHSA-2012:0350", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "kernel-0:2.6.32-220.7.1.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2012-03-06T00:00:00Z"}, {"advisory": "RHSA-2012:1042", "cpe": "cpe:/o:redhat:rhel_eus:6.1", "package": "kernel-0:2.6.32-131.29.1.el6", "product_name": "Red Hat Enterprise Linux 6.1 EUS - Server Only", "release_date": "2012-06-26T00:00:00Z"}], "bugzilla": {"description": "kernel: kvm: device assignment DoS", "id": "756084", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=756084"}, "csaw": false, "cvss": {"cvss_base_score": "4.0", "cvss_scoring_vector": "AV:L/AC:H/Au:N/C:N/I:N/A:C", "status": "verified"}, "details": ["The kvm_vm_ioctl_assign_device function in virt/kvm/assigned-dev.c in the KVM subsystem in the Linux kernel before 3.1.10 does not verify permission to access PCI configuration space and BAR resources, which allows host OS users to assign PCI devices and cause a denial of service (host OS crash) via a KVM_ASSIGN_PCI_DEVICE operation."], "name": "CVE-2011-4347", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:4", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 4"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Affected", "package_name": "kvm", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Not affected", "package_name": "realtime-kernel", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2011-11-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-4347\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-4347"], "statement": "This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4 and Red Hat Enterprise MRG as they did not provide support for the KVM subsystem. This has been addressed in Red Hat Enterprise Linux 6 via https://rhn.redhat.com/errata/RHSA-2012-0350.html. A future kvm update in Red Hat Enterprise 5 may address this flaw.", "threat_severity": "Moderate"}

{}