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{"acknowledgement": "Red Hat would like to thank Xen for reporting this issue.", "bugzilla": {"description": "xen: Excessive checking in compatibility mode hypercall argument translation (xsa111)", "id": "1164253", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1164253"}, "csaw": false, "cvss": {"cvss_base_score": "5.2", "cvss_scoring_vector": "AV:A/AC:M/Au:S/C:N/I:N/A:C", "status": "draft"}, "details": ["The compatibility mode hypercall argument translation in Xen 3.3.x through 4.4.x, when running on a 64-bit hypervisor, allows local 32-bit HVM guests to cause a denial of service (host crash) via vectors involving altering the high halves of registers while in 64-bit mode."], "name": "CVE-2014-8866", "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": "2014-11-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2014-8866\nhttps://nvd.nist.gov/vuln/detail/CVE-2014-8866"], "statement": "Not vulnerable.\nThis issue did not affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5.", "threat_severity": "Important"}