{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2010-4255",
        "ASSIGNER": "secalert@redhat.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "The fixup_page_fault function in arch/x86/traps.c in Xen 4.0.1 and earlier on 64-bit platforms, when paravirtualization is enabled, does not verify that kernel mode is used to call the handle_gdt_ldt_mapping_fault function, which allows guest OS users to cause a denial of service (host OS BUG_ON) via a crafted memory access."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "n/a",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "n/a"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "http://secunia.com/advisories/46397",
                "refsource": "MISC",
                "name": "http://secunia.com/advisories/46397"
            },
            {
                "url": "http://www.securityfocus.com/archive/1/520102/100/0/threaded",
                "refsource": "MISC",
                "name": "http://www.securityfocus.com/archive/1/520102/100/0/threaded"
            },
            {
                "url": "http://www.vmware.com/security/advisories/VMSA-2011-0012.html",
                "refsource": "MISC",
                "name": "http://www.vmware.com/security/advisories/VMSA-2011-0012.html"
            },
            {
                "url": "http://secunia.com/advisories/42884",
                "refsource": "MISC",
                "name": "http://secunia.com/advisories/42884"
            },
            {
                "url": "http://www.redhat.com/support/errata/RHSA-2011-0017.html",
                "refsource": "MISC",
                "name": "http://www.redhat.com/support/errata/RHSA-2011-0017.html"
            },
            {
                "url": "http://lists.xensource.com/archives/html/xen-devel/2010-11/msg01650.html",
                "refsource": "MISC",
                "name": "http://lists.xensource.com/archives/html/xen-devel/2010-11/msg01650.html"
            },
            {
                "url": "http://openwall.com/lists/oss-security/2010/11/30/5",
                "refsource": "MISC",
                "name": "http://openwall.com/lists/oss-security/2010/11/30/5"
            },
            {
                "url": "http://openwall.com/lists/oss-security/2010/11/30/8",
                "refsource": "MISC",
                "name": "http://openwall.com/lists/oss-security/2010/11/30/8"
            },
            {
                "url": "https://bugzilla.redhat.com/show_bug.cgi?id=658155",
                "refsource": "MISC",
                "name": "https://bugzilla.redhat.com/show_bug.cgi?id=658155"
            }
        ]
    }
}