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From bugzi...@apache.org
Subject [Bug 60626] New: ArrayIndexOutOfBoundsException in EvilUnclosedBRFixingInputStream
Date Mon, 23 Jan 2017 08:32:46 GMT
https://bz.apache.org/bugzilla/show_bug.cgi?id=60626

            Bug ID: 60626
           Summary: ArrayIndexOutOfBoundsException in
                    EvilUnclosedBRFixingInputStream
           Product: POI
           Version: 3.16-dev
          Hardware: PC
            Status: NEW
          Severity: blocker
          Priority: P2
         Component: XSSF
          Assignee: dev@poi.apache.org
          Reporter: pik@uniquare.com
  Target Milestone: ---

Created attachment 34663
  --> https://bz.apache.org/bugzilla/attachment.cgi?id=34663&action=edit
VML file that causes the problem

I have an Excel file that can't be loaded. I found that
EvilUnclosedBRFixingInputStream has a problem with a VML file with was part of
my Excel file. 

The following sample code reproduces the problem:

String xmlFile = "vmlDrawing3.vml";
byte[] data = Files.readAllBytes(Paths.get(xmlFile));
ByteArrayInputStream bis = new ByteArrayInputStream(data);
EvilUnclosedBRFixingInputStream is = new EvilUnclosedBRFixingInputStream(bis);
DocumentHelper.readDocument(is);

The following Exception is thrown, however not in all Operating Systems/JDK
Versions:

   Caused by: java.lang.ArrayIndexOutOfBoundsException: 2048
     at org.apache.xerces.impl.io.UTF8Reader.read(UTF8Reader.java:336)
     at
org.apache.xerces.impl.XMLEntityScanner.load(XMLEntityScanner.java:1753)
     at
org.apache.xerces.impl.XMLEntityScanner.scanLiteral(XMLEntityScanner.java:834)
     at
org.apache.xerces.impl.XMLScanner.scanAttributeValue(XMLScanner.java:772)
     at
org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanAttribute(XMLNSDocumentScannerImpl.java:529)
     at
org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:181)
     at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1653)
     at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:324)
     at
org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:875)
     at
org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:798)
     at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:108)
     at org.apache.xerces.parsers.DOMParser.parse(DOMParser.java:230)
     at
org.apache.xerces.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:298)
     at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:121)
     at
org.apache.poi.util.DocumentHelper.readDocument(DocumentHelper.java:137)
        ...

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