[PDFBOX-5107] ClassCastException in COSStream.getFilterList

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.22, 3.0.0 PDFBox
• Fix Version/s: 2.0.23, 3.0.0 PDFBox
• Component/s: Parsing
• Assignee: Tilman Hausherr
• Reporter: Fabian Meumertzheim
• Created: 22/Feb/21 19:42
• Updated: 19/Mar/21 15:41
• Resolved: 23/Feb/21 19:09

Description

The attached (broken) PDF throws the following undeclared exception when loaded via Loader.loadPDF (using current Git revision 275c77953ec8c2c896f9085b3508bef2c4d00d2f):

java.lang.ClassCastException: class org.apache.pdfbox.cos.COSInteger cannot be cast to class org.apache.pdfbox.cos.COSName (org.apache.pdfbox.cos.COSInteger and org.apache.pdfbox.cos.COSName are in unnamed module of loader 'app')
at org.apache.pdfbox.cos.COSStream.getFilterList(COSStream.java:331)
at org.apache.pdfbox.cos.COSStream.createView(COSStream.java:186)
at org.apache.pdfbox.pdfparser.PDFObjectStreamParser.<init>(PDFObjectStreamParser.java:48)
at org.apache.pdfbox.pdfparser.COSParser.bfSearchForObjStreams(COSParser.java:1643)
at org.apache.pdfbox.pdfparser.COSParser.rebuildTrailer(COSParser.java:1879)
at org.apache.pdfbox.pdfparser.COSParser.retrieveTrailer(COSParser.java:263)
at org.apache.pdfbox.pdfparser.PDFParser.initialParse(PDFParser.java:127)
at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:180)
at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:154)
at org.apache.pdfbox.Loader.loadPDF(Loader.java:204)
at com.example.PdfBoxFuzzer.fuzzerTestOneInput(PdfBoxFuzzer.java:31)