1 | <?xml version="1.0"?>
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2 | <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
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3 | targetNamespace="http://nvd.nist.gov/feeds/cve/1.2"
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4 | xmlns:cve="http://nvd.nist.gov/feeds/cve/1.2"
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5 | elementFormDefault="qualified" attributeFormDefault="unqualified"
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6 | version="1.2">
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7 | <xs:annotation>
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8 | <xs:documentation>This schema defines the structure of the National
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9 | Vulnerability Database XML feed files version: 1.2. The elements and
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10 | attribute in this document are described by xs:annotation tags. This
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11 | file is kept at http://nvd.nist.gov/schema/nvdcve.xsd. The NVD XML
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12 | feeds are available at http://nvd.nist.gov/download.cfm.
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13 |
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14 | Release Notes:
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15 |
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16 | Version 1.2:
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17 | * CVSS version 2 scores and vectors have been added. Please see
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18 | http://nvd.nist.gov/cvss.cfm?vectorinfo and
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19 | http://www.first.org/cvss/cvss-guide.html for more information on
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20 | how to interpret this data. </xs:documentation>
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21 | </xs:annotation>
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22 | <xs:element name="nvd">
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23 | <xs:annotation>
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24 | <xs:documentation>The root element of the NVD CVE feed. Multiple "entry" child elements describe specific NVD CVE entries.</xs:documentation>
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25 | </xs:annotation>
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26 | <xs:complexType>
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27 | <xs:sequence>
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28 | <xs:element ref="cve:entry" minOccurs="0" maxOccurs="unbounded"/>
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29 | </xs:sequence>
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30 | <xs:attribute name="nvd_xml_version" type="xs:NMTOKEN" use="required">
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31 | <xs:annotation>
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32 | <xs:documentation>The schema version number supported by the feed.</xs:documentation>
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33 | </xs:annotation>
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34 | </xs:attribute>
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35 | <xs:attribute name="pub_date" type="cve:dateType" use="required">
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36 | <xs:annotation>
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37 | <xs:documentation>The date the feed was generated.</xs:documentation>
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38 | </xs:annotation>
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39 | </xs:attribute>
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40 | </xs:complexType>
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41 | </xs:element>
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42 |
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43 | <xs:element name="entry" type="cve:entryType">
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44 | <xs:annotation>
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45 | <xs:documentation>A CVE entry.</xs:documentation>
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46 | </xs:annotation>
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47 | </xs:element>
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48 |
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49 | <!-- ******************************************************************* -->
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50 | <!-- * Complex Types * -->
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51 | <!-- ******************************************************************* -->
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52 | <xs:complexType name="entryType">
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53 | <xs:annotation>
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54 | <xs:documentation> Documents one CVE entry. The child elements should always
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55 | appear in the sequence defined below. These elements are compatible with
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56 | entry elements from the CVE XML feeds.</xs:documentation>
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57 | </xs:annotation>
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58 | <xs:sequence>
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59 | <xs:element name="desc">
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60 | <xs:annotation>
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61 | <xs:documentation>Description wrapper tag, parent to any
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62 | documented descriptions of this CVE entry. While the "desc"
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63 | tag will always be present, there may be no "descript" child
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64 | tags. Only one "descript" tag will exist for each
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65 | description source (i.e. CVE, NVD, ...). </xs:documentation>
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66 | </xs:annotation>
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67 | <xs:complexType>
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68 | <xs:sequence>
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69 | <xs:element name="descript" type="cve:descriptType" minOccurs="0" maxOccurs="2">
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70 | <xs:annotation>
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71 | <xs:documentation>A description of a CVE entry
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72 | from the source indicated by the "source"
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73 | attribute.</xs:documentation>
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74 | </xs:annotation>
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75 | </xs:element>
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76 | </xs:sequence>
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77 | </xs:complexType>
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78 | </xs:element>
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79 | <xs:element name="impacts" minOccurs="0">
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80 | <xs:annotation>
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81 | <xs:documentation> Impact wrapper tag (may or may not be
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82 | present). Only one "impact" tag will exist for each impact
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83 | explanation source. </xs:documentation>
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84 | </xs:annotation>
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85 | <xs:complexType>
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86 | <xs:sequence>
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87 | <xs:element name="impact" type="cve:impactType">
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88 | <xs:annotation>
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89 | <xs:documentation> Contains a specific impact
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90 | explanation of this CVE entry from source
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91 | indicated by the "source" attribute.
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92 | </xs:documentation>
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93 | </xs:annotation>
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94 | </xs:element>
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95 | </xs:sequence>
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96 | </xs:complexType>
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97 | </xs:element>
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98 | <xs:element name="sols" type="cve:solsType" minOccurs="0">
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99 | <xs:annotation>
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100 | <xs:documentation> Solution wrapper tag (may or may not be
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101 | present). Only one "sol" tag will exist for each solution
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102 | explanation source. </xs:documentation>
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103 | </xs:annotation>
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104 | </xs:element>
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105 | <xs:element name="loss_types" type="cve:lossTypeType" minOccurs="0">
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106 | <xs:annotation>
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107 | <xs:documentation> Loss type tag (may or may not be present).
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108 | Contains one loss type child for each loss type of this CVE
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109 | entry. Potential loss types are: "avail" => availability
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110 | "conf" => confidentiality "int" => integrity "sec_prot" =>
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111 | security protection </xs:documentation>
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112 | </xs:annotation>
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113 | </xs:element>
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114 | <xs:element name="vuln_types" type="cve:vulnType" minOccurs="0">
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115 | <xs:annotation>
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116 | <xs:documentation> Vulnerability type tag (may or may not be
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117 | present). Contains one vulnerability type child for each
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118 | vulnerability type of this CVE entry. Potential
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119 | vulnerability types are: "access" => Access validation error
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120 | "input" => Input validation error "design" => Design error
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121 | "exception" => Exceptional condition error "env" =>
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122 | Environmental error "config" => Configuration error "race"
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123 | => Race condition error "other" => other </xs:documentation>
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124 | </xs:annotation>
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125 | </xs:element>
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126 | <xs:element name="range" type="cve:rangeType" minOccurs="0">
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127 | <xs:annotation>
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128 | <xs:documentation> Vulnerability range tag (may or may not be
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129 | present). Contains one vulnerability range child for each
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130 | vulnerability range of this CVE entry. Potential
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131 | vulnerability ranges are: "local" => Locally exploitable
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132 | "local_network" => Local network exploitable "network" =>
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133 | Network exploitable "user_init" => User accesses attacker
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134 | </xs:documentation>
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135 | </xs:annotation>
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136 | </xs:element>
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137 | <xs:element name="refs">
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138 | <xs:annotation>
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139 | <xs:documentation> Reference wrapper tag (always present).
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140 | External references to this CVE entry are contained within
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141 | this tag. </xs:documentation>
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142 | </xs:annotation>
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143 | <xs:complexType>
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144 | <xs:sequence>
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145 | <xs:element name="ref" type="cve:refType" minOccurs="0" maxOccurs="unbounded">
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146 | <xs:annotation>
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147 | <xs:documentation> Individual reference to this CVE
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148 | entry. Text is the name of this vulnerability at
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149 | this particular reference. Attributes: "source"
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150 | (required) => Name of reference source "url"
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151 | (required) => hyperlink to reference "sig" =>
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152 | indicates this reference includes a tool
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153 | signature "adv" => indicates this reference is a
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154 | Security Advisory "patch" => indicates this
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155 | reference includes a patch for this
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156 | vulnerability </xs:documentation>
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157 | </xs:annotation>
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158 | </xs:element>
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159 | </xs:sequence>
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160 | </xs:complexType>
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161 | </xs:element>
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162 | <xs:element name="vuln_soft" type="cve:vulnSoftType" minOccurs="0">
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163 | <xs:annotation>
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164 | <xs:documentation> Vulnerable software wrapper tag (may or may
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165 | not be present). Software affected by this CVE entry are
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166 | listed within this tag. </xs:documentation>
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167 | </xs:annotation>
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168 | </xs:element>
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169 | </xs:sequence>
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170 | <xs:attribute name="type" use="required">
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171 | <xs:annotation>
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172 | <xs:documentation>CVE or CAN</xs:documentation>
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173 | </xs:annotation>
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174 | <xs:simpleType>
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175 | <xs:restriction base="xs:NMTOKEN">
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176 | <xs:enumeration value="CAN"/>
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177 | <xs:enumeration value="CVE"/>
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178 | </xs:restriction>
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179 | </xs:simpleType>
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180 | </xs:attribute>
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181 | <xs:attribute name="name" use="required">
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182 | <xs:annotation>
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183 | <xs:documentation>the full CVE name</xs:documentation>
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184 | </xs:annotation>
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185 | <xs:simpleType>
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186 | <xs:restriction base="xs:ID">
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187 | <xs:pattern value="(CAN|CVE)\-\d\d\d\d\-\d\d\d\d"/>
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188 | </xs:restriction>
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189 | </xs:simpleType>
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190 | </xs:attribute>
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191 | <xs:attribute name="seq" use="required">
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192 | <xs:annotation>
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193 | <xs:documentation>the sequence number from CVE name</xs:documentation>
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194 | </xs:annotation>
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195 | <xs:simpleType>
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196 | <xs:restriction base="xs:NMTOKEN">
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197 | <xs:pattern value="\d\d\d\d\-\d\d\d\d"/>
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198 | </xs:restriction>
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199 | </xs:simpleType>
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200 | </xs:attribute>
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201 | <xs:attribute name="nvd_name" type="xs:string">
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202 | <xs:annotation>
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203 | <xs:documentation>the NVD name (if it exists)</xs:documentation>
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204 | </xs:annotation>
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205 | </xs:attribute>
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206 | <xs:attribute name="discovered" type="cve:dateType">
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207 | <xs:annotation>
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208 | <xs:documentation>the date this entry was discovered</xs:documentation>
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209 | </xs:annotation>
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210 | </xs:attribute>
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211 | <xs:attribute name="published" type="cve:dateType" use="required">
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212 | <xs:annotation>
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213 | <xs:documentation>the date this entry was published</xs:documentation>
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214 | </xs:annotation>
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215 | </xs:attribute>
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216 | <xs:attribute name="modified" type="cve:dateType">
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217 | <xs:annotation>
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218 | <xs:documentation>the date this entry was last modified</xs:documentation>
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219 | </xs:annotation>
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220 | </xs:attribute>
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221 | <xs:attribute name="severity">
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222 | <xs:annotation>
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223 | <xs:documentation>the entry's severity as determined by the NVD analysts: High, Medium, or Low</xs:documentation>
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224 | </xs:annotation>
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225 | <xs:simpleType>
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226 | <xs:restriction base="xs:NMTOKEN">
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227 | <xs:enumeration value="High"/>
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228 | <xs:enumeration value="Medium"/>
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229 | <xs:enumeration value="Low"/>
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230 | </xs:restriction>
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231 | </xs:simpleType>
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232 | </xs:attribute>
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233 | <xs:attribute name="reject" type="cve:trueOnlyAttribute">
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234 | <xs:annotation>
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235 | <xs:documentation>indicates that this CVE entry has been rejected by CVE or NVD</xs:documentation>
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236 | </xs:annotation>
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237 | </xs:attribute>
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238 | <xs:attribute name="CVSS_version" type="xs:string">
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239 | <xs:annotation>
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240 | <xs:documentation>the CVSS Version Indicator</xs:documentation>
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241 | </xs:annotation>
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242 | </xs:attribute>
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243 | <xs:attribute name="CVSS_score" type="cve:zeroToTen">
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244 | <xs:annotation>
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245 | <xs:documentation>Same as the CVSS_base_score to provide backwards compatability with the previous CVE XML feed format. This field is deprecated an may be removed at a future date.</xs:documentation>
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246 | </xs:annotation>
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247 | </xs:attribute>
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248 | <xs:attribute name="CVSS_base_score" type="cve:zeroToTen">
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249 | <xs:annotation>
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250 | <xs:documentation>CVSS version 2 Base Score</xs:documentation>
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251 | </xs:annotation>
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252 | </xs:attribute>
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253 | <xs:attribute name="CVSS_impact_subscore" type="cve:zeroToTen">
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254 | <xs:annotation>
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255 | <xs:documentation>CVSS version 2 Impact Score</xs:documentation>
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256 | </xs:annotation>
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257 | </xs:attribute>
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258 | <xs:attribute name="CVSS_exploit_subscore" type="cve:zeroToTen">
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259 | <xs:annotation>
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260 | <xs:documentation>CVSS version 2 Exploit Score</xs:documentation>
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261 | </xs:annotation>
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262 | </xs:attribute>
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263 | <xs:attribute name="CVSS_vector" type="cve:CVSSVector">
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264 | <xs:annotation>
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265 | <xs:documentation>the CVSS version 2 Vector string</xs:documentation>
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266 | </xs:annotation>
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267 | </xs:attribute>
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268 | </xs:complexType>
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269 |
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270 | <xs:complexType name="descriptType">
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271 | <xs:simpleContent>
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272 | <xs:extension base="xs:string">
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273 | <xs:attribute name="source" type="cve:descriptSourceType" use="required">
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274 | <xs:annotation>
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275 | <xs:documentation>The source of the CVE description.</xs:documentation>
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276 | </xs:annotation>
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277 | </xs:attribute>
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278 | </xs:extension>
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279 | </xs:simpleContent>
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280 | </xs:complexType>
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281 |
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282 | <xs:complexType name="impactType">
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283 | <xs:simpleContent>
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284 | <xs:extension base="xs:string">
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285 | <xs:attribute name="source" type="cve:impactSourceType" use="required">
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286 | </xs:attribute>
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287 | </xs:extension>
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288 | </xs:simpleContent>
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289 | </xs:complexType>
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290 |
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291 | <xs:complexType name="vulnType">
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292 | <xs:sequence>
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293 | <xs:element name="access" minOccurs="0"/>
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294 | <xs:element name="input" minOccurs="0">
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295 | <xs:annotation>
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296 | <xs:documentation> Input validation error tag with
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297 | one attribute for each input validation error
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298 | type. Potential input validation error types
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299 | are: "bound" => Boundary condition error
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300 | "buffer" => Buffer overflow </xs:documentation>
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301 | </xs:annotation>
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302 | <xs:complexType>
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303 | <xs:attribute name="bound" type="cve:trueOnlyAttribute"/>
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304 | <xs:attribute name="buffer" type="cve:trueOnlyAttribute"
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305 | />
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306 | </xs:complexType>
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307 | </xs:element>
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308 | <xs:element name="design" minOccurs="0"/>
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309 | <xs:element name="exception" minOccurs="0"/>
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310 | <xs:element name="env" minOccurs="0"/>
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311 | <xs:element name="config" minOccurs="0"/>
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312 | <xs:element name="race" minOccurs="0"/>
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313 | <xs:element name="other" minOccurs="0"/>
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314 | </xs:sequence>
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315 | </xs:complexType>
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316 |
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317 | <xs:complexType name="solsType">
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318 | <xs:sequence>
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319 | <xs:element name="sol">
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320 | <xs:annotation>
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321 | <xs:documentation> Contains a specific solution
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322 | explanation of this CVE entry from source
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323 | indicated by the "source" attribute.
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324 | </xs:documentation>
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325 | </xs:annotation>
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326 | <xs:complexType mixed="true">
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327 | <xs:simpleContent>
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328 | <xs:extension base="xs:string">
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329 | <xs:attribute name="source" type="cve:solsSourceType" use="required">
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330 | </xs:attribute>
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331 | </xs:extension>
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332 | </xs:simpleContent>
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333 | </xs:complexType>
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334 | </xs:element>
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335 | </xs:sequence>
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336 | </xs:complexType>
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337 |
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338 | <xs:complexType name="lossTypeType">
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339 | <xs:sequence>
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340 | <xs:element name="avail" minOccurs="0"/>
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341 | <xs:element name="conf" minOccurs="0"/>
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342 | <xs:element name="int" minOccurs="0"/>
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343 | <xs:element name="sec_prot" minOccurs="0">
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344 | <xs:annotation>
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345 | <xs:documentation> Security Protection tag with one
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346 | attribute for each security protection type.
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347 | Potential security protection types are: "admin"
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348 | => gain administrative access "user" => gain
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349 | user access "other" => other </xs:documentation>
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350 | </xs:annotation>
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351 | <xs:complexType>
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352 | <xs:attribute name="admin" type="cve:trueOnlyAttribute"/>
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353 | <xs:attribute name="user" type="cve:trueOnlyAttribute"/>
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354 | <xs:attribute name="other" type="cve:trueOnlyAttribute"
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355 | />
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356 | </xs:complexType>
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357 | </xs:element>
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358 | </xs:sequence>
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359 | </xs:complexType>
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360 |
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361 | <xs:complexType name="rangeType">
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362 | <xs:sequence>
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363 | <xs:element name="local" minOccurs="0"/>
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364 | <xs:element name="local_network" minOccurs="0"/>
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365 | <xs:element name="network" minOccurs="0"/>
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366 | <xs:element name="user_init" minOccurs="0"/>
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367 | </xs:sequence>
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368 | </xs:complexType>
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369 |
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370 | <xs:complexType name="refType">
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371 | <xs:simpleContent>
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372 | <xs:extension base="xs:string">
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373 | <xs:attribute name="source" type="xs:string" use="required"/>
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374 | <xs:attribute name="url" type="cve:urlType" use="required"/>
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375 | <xs:attribute name="sig" type="cve:trueOnlyAttribute"/>
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376 | <xs:attribute name="adv" type="cve:trueOnlyAttribute"/>
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377 | <xs:attribute name="patch" type="cve:trueOnlyAttribute"/>
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378 | </xs:extension>
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379 | </xs:simpleContent>
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380 | </xs:complexType>
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381 |
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382 | <xs:complexType name="vulnSoftType">
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383 | <xs:sequence>
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384 | <xs:element name="prod" maxOccurs="unbounded">
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385 | <xs:annotation>
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386 | <xs:documentation> Product wrapper tag. Versions of
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387 | this product that are affected by this
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388 | vulnerability are listed within this tag.
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389 | Attributes: "name" => Product name "vendor" =>
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390 | Vendor of this product </xs:documentation>
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391 | </xs:annotation>
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392 | <xs:complexType>
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393 | <xs:sequence>
|
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394 | <xs:element name="vers" maxOccurs="unbounded">
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395 | <xs:annotation>
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396 | <xs:documentation> Represents a version
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397 | of this product that is affected by
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398 | this vulnerability. Attributes:
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399 | "num" => This version number "prev"
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400 | => Indicates that versions previous
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401 | to this version number are also
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402 | affected by this vulnerability
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403 | "edition" => Indicates the edition
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404 | associated with the version number
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405 | </xs:documentation>
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406 | </xs:annotation>
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407 | <xs:complexType>
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408 | <xs:attribute name="num"
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409 | type="xs:string" use="required"/>
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410 | <xs:attribute name="prev"
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411 | type="cve:trueOnlyAttribute"/>
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412 | <xs:attribute name="edition"
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413 | type="xs:string"/>
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414 | </xs:complexType>
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415 | </xs:element>
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416 | </xs:sequence>
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417 | <xs:attribute name="name" type="xs:string"
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418 | use="required"/>
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419 | <xs:attribute name="vendor" type="xs:string"
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420 | use="required"/>
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421 | </xs:complexType>
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422 | </xs:element>
|
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423 | </xs:sequence>
|
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424 | </xs:complexType>
|
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425 |
|
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426 | <!-- ******************************************************************* -->
|
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427 | <!-- * Simple Types * -->
|
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428 | <!-- ******************************************************************* -->
|
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429 | <xs:simpleType name="descriptSourceType">
|
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430 | <xs:restriction base="xs:NMTOKEN">
|
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431 | <xs:enumeration value="cve"/>
|
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432 | <xs:enumeration value="nvd"/>
|
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433 | </xs:restriction>
|
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434 | </xs:simpleType>
|
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435 |
|
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436 | <xs:simpleType name="impactSourceType">
|
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437 | <xs:restriction base="xs:NMTOKEN">
|
---|
438 | <xs:enumeration value="nvd"/>
|
---|
439 | </xs:restriction>
|
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440 | </xs:simpleType>
|
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441 |
|
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442 | <xs:simpleType name="solsSourceType">
|
---|
443 | <xs:restriction base="xs:NMTOKEN">
|
---|
444 | <xs:enumeration value="nvd"/>
|
---|
445 | </xs:restriction>
|
---|
446 | </xs:simpleType>
|
---|
447 |
|
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448 | <xs:simpleType name="dateType">
|
---|
449 | <xs:annotation>
|
---|
450 | <xs:documentation> Defines date format for NVD. Dates follow the mask "yyyy-mm-dd"
|
---|
451 | </xs:documentation>
|
---|
452 | </xs:annotation>
|
---|
453 | <xs:restriction base="xs:string">
|
---|
454 | <xs:pattern
|
---|
455 | value="(19|20)\d\d-((01|03|05|07|08|10|12)-(0[1-9]|[1-2]\d|3[01])|(04|06|09|11)-(0[1-9]|[1-2]\d|30)|02-(0[1-9]|1\d|2\d))"
|
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456 | />
|
---|
457 | </xs:restriction>
|
---|
458 | </xs:simpleType>
|
---|
459 | <xs:simpleType name="urlType">
|
---|
460 | <xs:annotation>
|
---|
461 | <xs:documentation> Restricts urls in NVD beyond the xs:anyURI restrictions.
|
---|
462 | </xs:documentation>
|
---|
463 | </xs:annotation>
|
---|
464 | <xs:restriction base="xs:anyURI">
|
---|
465 | <xs:whiteSpace value="collapse"/>
|
---|
466 | <xs:pattern value="(news|(ht|f)tp(s)?)://.+"/>
|
---|
467 | </xs:restriction>
|
---|
468 | </xs:simpleType>
|
---|
469 | <xs:simpleType name="trueOnlyAttribute">
|
---|
470 | <xs:annotation>
|
---|
471 | <xs:documentation> simpleType used for attributes that are only present when they are
|
---|
472 | true. Such attributes appear only in the form attribute_name="1".
|
---|
473 | </xs:documentation>
|
---|
474 | </xs:annotation>
|
---|
475 | <xs:restriction base="xs:NMTOKEN">
|
---|
476 | <xs:enumeration value="1"/>
|
---|
477 | </xs:restriction>
|
---|
478 | </xs:simpleType>
|
---|
479 | <xs:simpleType name="zeroToTen">
|
---|
480 | <xs:annotation>
|
---|
481 | <xs:documentation> simpleType used when scoring on a scale of 0-10, inclusive
|
---|
482 | </xs:documentation>
|
---|
483 | </xs:annotation>
|
---|
484 | <xs:restriction base="xs:decimal">
|
---|
485 | <xs:minInclusive value="0" fixed="true"/>
|
---|
486 | <xs:maxInclusive value="10" fixed="true"/>
|
---|
487 | </xs:restriction>
|
---|
488 | </xs:simpleType>
|
---|
489 | <xs:simpleType name="CVSSVector">
|
---|
490 | <xs:annotation>
|
---|
491 | <xs:documentation>simpleType to describe the CVSS Base Vector </xs:documentation>
|
---|
492 | </xs:annotation>
|
---|
493 | <xs:restriction base="xs:string">
|
---|
494 | <xs:pattern
|
---|
495 | value="\(AV:[LAN]/AC:[HML]/Au:[NSM]/C:[NPC]/I:[NPC]/A:[NPC]\)"/>
|
---|
496 | </xs:restriction>
|
---|
497 | </xs:simpleType>
|
---|
498 | </xs:schema>
|
---|