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{"acknowledgement": "Red Hat would like to thank the Xen project for reporting this issue. Upstream acknowledges Jann Horn (Google) as the original reporter.", "bugzilla": {"description": "xen: x86: 64bit PV guest breakout via pagetable use-after-mode-change (XSA-213)", "id": "1443222", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1443222"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.5", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "status": "draft"}, "details": ["Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213."], "name": "CVE-2017-8903", "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": "2017-05-02T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-8903\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-8903\nhttp://xenbits.xen.org/xsa/advisory-213.html"], "threat_severity": "Important"}