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{"acknowledgement": "Red Hat would like to thank the Xen project for reporting this issue.", "bugzilla": {"description": "xen: x86: Missing SMAP whitelisting in 32-bit exception / event delivery (XSA-183)", "id": "1355983", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1355983"}, "csaw": false, "cvss": {"cvss_base_score": "3.5", "cvss_scoring_vector": "AV:N/AC:M/Au:S/C:N/I:N/A:P", "status": "draft"}, "cvss3": {"cvss3_base_score": "6.3", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H", "status": "draft"}, "details": ["Xen 4.5.x through 4.7.x do not implement Supervisor Mode Access Prevention (SMAP) whitelisting in 32-bit exception and event delivery, which allows local 32-bit PV guest OS kernels to cause a denial of service (hypervisor and VM crash) by triggering a safety check."], "name": "CVE-2016-6259", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "xen", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2016-07-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-6259\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-6259\nhttp://xenbits.xen.org/xsa/advisory-183.html"], "threat_severity": "Moderate"}