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{"bugzilla": {"description": "xen: Nested VT-x usable even when disabled", "id": "1643116", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1643116"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.5", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L", "status": "draft"}, "cwe": "CWE-250", "details": ["An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecified other impact because nested VT-x is not properly restricted."], "name": "CVE-2018-18883", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "xen", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2018-10-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2018-18883\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-18883"], "threat_severity": "Moderate"}