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{"acknowledgement": "Red Hat would like to thank the Xen project for reporting this issue. Upstream acknowledges 360 Marvel Team as the original reporter.", "bugzilla": {"description": "xen: PV superpage functionality missing sanity checks", "id": "1296539", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1296539"}, "csaw": false, "cvss": {"cvss_base_score": "6.0", "cvss_scoring_vector": "AV:N/AC:M/Au:S/C:P/I:P/A:P", "status": "draft"}, "details": ["The PV superpage functionality in arch/x86/mm.c in Xen 3.4.0, 3.4.1, and 4.1.x through 4.6.x allows local PV guests to obtain sensitive information, cause a denial of service, gain privileges, or have unspecified other impact via a crafted page identifier (MFN) to the (1) MMUEXT_MARK_SUPER or (2) MMUEXT_UNMARK_SUPER sub-op in the HYPERVISOR_mmuext_op hypercall or (3) unknown vectors related to page table updates."], "name": "CVE-2016-1570", "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": "2016-01-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-1570\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-1570"], "threat_severity": "Important"}