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{"acknowledgement": "Red Hat would like to thank Xen project for reporting this issue.", "bugzilla": {"description": "xen: GNTTABOP_swap_grant_ref operation misbehavior (xsa-134)", "id": "1226290", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1226290"}, "csaw": false, "cvss": {"cvss_base_score": "2.9", "cvss_scoring_vector": "AV:A/AC:M/Au:N/C:N/I:N/A:P", "status": "draft"}, "cwe": "CWE-476", "details": ["GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table operation version, which allows local guest domains to cause a denial of service (NULL pointer dereference) via a hypercall without a GNTTABOP_setup_table or GNTTABOP_set_version."], "name": "CVE-2015-4163", "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": "2015-06-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2015-4163\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-4163"], "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": "Moderate"}