Robin Schimpf created PDFBOX-4352:
-------------------------------------

             Summary: NullPointerException in COSParser
                 Key: PDFBOX-4352
                 URL: https://issues.apache.org/jira/browse/PDFBOX-4352
             Project: PDFBox
          Issue Type: Bug
    Affects Versions: 2.0.12
            Reporter: Robin Schimpf
         Attachments: NullPointerException COSParser#parseDictionaryRecursive

Fuzzing PDF loading with [JQF|https://github.com/rohanpadhye/jqf] triggered an 
NullPointerException.
{code:java}
java.lang.NullPointerException
        at 
org.apache.pdfbox.pdfparser.COSParser.parseDictionaryRecursive(COSParser.java:2920)
        at 
org.apache.pdfbox.pdfparser.COSParser.prepareDecryption(COSParser.java:2865)
        at 
org.apache.pdfbox.pdfparser.COSParser.retrieveTrailer(COSParser.java:284)
        at 
org.apache.pdfbox.pdfparser.PDFParser.initialParse(PDFParser.java:171)
        at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:220)
        at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1160)
        at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1057)
    ...

{code}
The Code used for fuzzing is
{code:java}
PDDocument.load(inputStream)
{code}



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