[ https://issues.apache.org/jira/browse/PDFBOX-4193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16761095#comment-16761095 ]
ASF subversion and git services commented on PDFBOX-4193:
---------------------------------------------------------
Commit 1853023 from Tilman Hausherr in branch 'pdfbox/trunk'
[ https://svn.apache.org/r1853023 ]
PDFBOX-4193: check that page tree node has /Type /Pages
> StackOverflow
> -------------
>
> Key: PDFBOX-4193
> URL: https://issues.apache.org/jira/browse/PDFBOX-4193
> Project: PDFBox
> Issue Type: Bug
> Components: Parsing, PDModel
> Reporter: floyd
> Priority: Major
> Attachments: 5_uncaught_stackoverflow_checkPagesDictionary.pdf, 6_uncaught_stackoverflow_getInheritableAttribute.pdf
>
>
> As part of a fuzzing run with the AFL-based Kelinci fuzzer found at [https://github.com/isstac/kelinci] for a larger software that uses PDFBox I found the following StackOverflowError issues:
> {code:java}
> Exception in thread "main" java.lang.StackOverflowError
> at java.util.HashMap.hash(HashMap.java:338)
> at java.util.LinkedHashMap.get(LinkedHashMap.java:440)
> at org.apache.pdfbox.cos.COSDictionary.getDictionaryObject(COSDictionary.java:188)
> at org.apache.pdfbox.pdfparser.COSParser.checkPagesDictionary(COSParser.java:2207)
> at org.apache.pdfbox.pdfparser.COSParser.checkPagesDictionary(COSParser.java:2230)
> at org.apache.pdfbox.pdfparser.COSParser.checkPagesDictionary(COSParser.java:2230)
> at org.apache.pdfbox.pdfparser.COSParser.checkPagesDictionary(COSParser.java:2230)
> at org.apache.pdfbox.pdfparser.COSParser.checkPagesDictionary(COSParser.java:2230)
> at org.apache.pdfbox.pdfparser.COSParser.checkPagesDictionary(COSParser.java:2230)
> at org.apache.pdfbox.pdfparser.COSParser.checkPagesDictionary(COSParser.java:2230)
> at org.apache.pdfbox.pdfparser.COSParser.checkPagesDictionary(COSParser.java:2230)
> at org.apache.pdfbox.pdfparser.COSParser.checkPagesDictionary(COSParser.java:2230)
> at org.apache.pdfbox.pdfparser.COSParser.checkPagesDictionary(COSParser.java:2230)
> at org.apache.pdfbox.pdfparser.COSParser.checkPagesDictionary(COSParser.java:2230)
> at org.apache.pdfbox.pdfparser.COSParser.checkPagesDictionary(COSParser.java:2230)
> at org.apache.pdfbox.pdfparser.COSParser.checkPagesDictionary(COSParser.java:2230)
> at org.apache.pdfbox.pdfparser.COSParser.checkPagesDictionary(COSParser.java:2230)
> [...]
> at org.apache.pdfbox.pdfparser.COSParser.checkPagesDictionary(COSParser.java:2230){code}
> Additionally, a second StackOverflowError was found:
> {code:java}
> Exception in thread "main" java.lang.StackOverflowError
> at java.util.HashMap.hash(HashMap.java:338)
> at java.util.LinkedHashMap.get(LinkedHashMap.java:440)
> at org.apache.pdfbox.cos.COSDictionary.getDictionaryObject(COSDictionary.java:188)
> at org.apache.pdfbox.pdmodel.PDPageTree.getInheritableAttribute(PDPageTree.java:102)
> at org.apache.pdfbox.pdmodel.PDPageTree.getInheritableAttribute(PDPageTree.java:111)
> at org.apache.pdfbox.pdmodel.PDPageTree.getInheritableAttribute(PDPageTree.java:111)
> at org.apache.pdfbox.pdmodel.PDPageTree.getInheritableAttribute(PDPageTree.java:111)
> at org.apache.pdfbox.pdmodel.PDPageTree.getInheritableAttribute(PDPageTree.java:111)
> at org.apache.pdfbox.pdmodel.PDPageTree.getInheritableAttribute(PDPageTree.java:111)
> at org.apache.pdfbox.pdmodel.PDPageTree.getInheritableAttribute(PDPageTree.java:111)
> at org.apache.pdfbox.pdmodel.PDPageTree.getInheritableAttribute(PDPageTree.java:111)
> at org.apache.pdfbox.pdmodel.PDPageTree.getInheritableAttribute(PDPageTree.java:111)
> at org.apache.pdfbox.pdmodel.PDPageTree.getInheritableAttribute(PDPageTree.java:111)
> at org.apache.pdfbox.pdmodel.PDPageTree.getInheritableAttribute(PDPageTree.java:111)
> at org.apache.pdfbox.pdmodel.PDPageTree.getInheritableAttribute(PDPageTree.java:111)
> at org.apache.pdfbox.pdmodel.PDPageTree.getInheritableAttribute(PDPageTree.java:111)
> at org.apache.pdfbox.pdmodel.PDPageTree.getInheritableAttribute(PDPageTree.java:111)
> at org.apache.pdfbox.pdmodel.PDPageTree.getInheritableAttribute(PDPageTree.java:111)
> [...]
> at org.apache.pdfbox.pdmodel.PDPageTree.getInheritableAttribute(PDPageTree.java:111){code}
> The issues can be reproduced with the attached files.
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