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"vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "The KVM implementation in the Linux kernel through 4.20.5 has an Information Leak."}, {"lang": "es", "value": "La implementaci\u00f3n KVM en el kernel de Linux, hasta la versi\u00f3n 4.20.5, tiene una fuga de informaci\u00f3n."}], "id": "CVE-2019-7222", "lastModified": "2024-11-21T04:47:47.040", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "[email protected]", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}]}, "published": "2019-03-21T16:01:11.127", "references": [{"source": "[email protected]", "tags": ["Broken Link", "Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00042.html"}, {"source": "[email protected]", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/151712/KVM-kvm_inject_page_fault-Uninitialized-Memory-Leak.html"}, {"source": "[email protected]", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "url": 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{"acknowledgement": "Red Hat would like to thank Felix Wilhelm (Google) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2019:2043", "cpe": "cpe:/a:redhat:rhel_extras_rt:7", "package": "kernel-rt-0:3.10.0-1062.rt56.1022.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2019-08-07T00:00:00Z"}, {"advisory": "RHSA-2019:2029", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-1062.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2019-08-06T00:00:00Z"}, {"advisory": "RHSA-2019:3309", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-147.rt24.93.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2019-11-05T00:00:00Z"}, {"advisory": "RHSA-2019:3517", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-147.el8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2019-11-05T00:00:00Z"}], "bugzilla": {"description": "Kernel: KVM: leak of uninitialized stack contents to guest", "id": "1671930", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1671930"}, "csaw": false, "cvss3": {"cvss3_base_score": "2.8", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N", "status": "verified"}, "cwe": "CWE-200", "details": ["The KVM implementation in the Linux kernel through 4.20.5 has an Information Leak.", "An information leakage issue was found in the way Linux kernel's KVM hypervisor handled page fault exceptions while emulating instructions like VMXON, VMCLEAR, VMPTRLD, and VMWRITE with memory address as an operand. It occurs if the operand is a mmio address, as the returned exception object holds uninitialized stack memory contents. A guest user/process could use this flaw to leak host's stack memory contents to a guest."], "name": "CVE-2019-7222", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-alt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2019-02-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-7222\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-7222"], "statement": "This issue does not affect the version of the kernel package as shipped with Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG 2.\nThis issue affects the versions of Linux kernel as shipped with Red Hat Enterprise Linux 7. Future kernel updates for Red Hat Enterprise Linux 7 may address this issue.\nNote:- Impact on Red Hat Enterprise Linux 7 kernel is limited, as it requires that nested virtualization feature is enabled on a system. Nested Virtualization feature is available only as - Technology Preview.", "threat_severity": "Low"}