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Posted to dev@pdfbox.apache.org by "Andreas Lehmkühler (Jira)" <ji...@apache.org> on 2021/04/13 06:05:00 UTC

[jira] [Created] (PDFBOX-5163) Stack overflow when reading a corrupt dictionary

Andreas Lehmkühler created PDFBOX-5163:
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             Summary: Stack overflow when reading a corrupt dictionary
                 Key: PDFBOX-5163
                 URL: https://issues.apache.org/jira/browse/PDFBOX-5163
             Project: PDFBox
          Issue Type: Bug
          Components: Parsing
    Affects Versions: 2.0.23
            Reporter: Andreas Lehmkühler
            Assignee: Andreas Lehmkühler
             Fix For: 2.0.24


Richard Smith/Chaoyuan Peng reported an issue with the current version 2.0.23. When parsing a carefully handcrafted pdf the following exception occurs and PDFBox crashes:
{code}
java.lang.StackOverflowError: null
    java.util.WeakHashMap.eq(Unknown Source)
    java.util.WeakHashMap.get(Unknown Source)
    java.util.Collections$SynchronizedMap.get(Unknown Source)
    org.apache.pdfbox.debugger.ui.LogDialog.log(LogDialog.java:143)
    org.apache.pdfbox.debugger.ui.DebugLog.warn(DebugLog.java:156)
    org.apache.pdfbox.pdfparser.BaseParser.parseDirObject(BaseParser.java:933)
    org.apache.pdfbox.pdfparser.BaseParser.parseCOSDictionaryValue(BaseParser.java:154)
    org.apache.pdfbox.pdfparser.BaseParser.parseCOSDictionaryNameValuePair(BaseParser.java:283)
    org.apache.pdfbox.pdfparser.BaseParser.parseCOSDictionary(BaseParser.java:216)
    org.apache.pdfbox.pdfparser.BaseParser.parseDirObject(BaseParser.java:859)
    org.apache.pdfbox.pdfparser.COSParser.parseFileObject(COSParser.java:917)
    org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:886)
    org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:806)
    org.apache.pdfbox.pdfparser.COSParser.getLength(COSParser.java:1060)
{code}



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