[PDFBOX-5163] Stack overflow when reading a corrupt dictionary

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.23, 3.0.0 PDFBox
• Fix Version/s: 2.0.24, 3.0.0 PDFBox
• Component/s: Parsing
• Assignee: Andreas Lehmkühler
• Reporter: Andreas Lehmkühler
• Created: 13/Apr/21 06:04
• Updated: 11/Jun/21 06:08
• Resolved: 13/Apr/21 06:27

Description

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:

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)

Issue Links

• relates to: PDFBOX-5176 java.io.IOException: Page tree root must be a dictionary