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https://issues.apache.org/jira/browse/PDFBOX-5158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17317606#comment-17317606
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Jason Pyeron commented on PDFBOX-5158:
--------------------------------------
I have a valid (non-corrupt) pdf which seems to have similar behavior. I cannot
share the PDF as it has customer data and PII in it, but I can run tests
against it.
[pdinc bug 2386|https://projects.pdinc.us/show_bug.cgi?id=2386]
getEOFEndingOffsets got caught in an endless loop due to too many PDF xref
found by XrefTrailerResolver
{noformat}
type pos (after EOF or start of xref)
======= ======
xref 217557
xref 220101
%%EOF 220298
xref 339064
xref 339461
%%EOF 339660
xref 533303
xref 533947
%%EOF 534146
xref 546909
xref 547346
%%EOF 547545
xref 625816
xref 626372
%%EOF 626571
xref 635964
xref 636321
%%EOF 636520
xref 657314
xref 657838
%%EOF 658037
xref 667430
xref 667787
%%EOF 667986
{noformat}
> Infinite loop on corrupted PDF in 3.0.0-SNAPSHOT
> ------------------------------------------------
>
> Key: PDFBOX-5158
> URL: https://issues.apache.org/jira/browse/PDFBOX-5158
> Project: PDFBox
> Issue Type: Bug
> Affects Versions: 3.0.0 PDFBox
> Reporter: Tim Allison
> Priority: Critical
>
> I found a bunch of files that had a "read too many EOFs", which is a safety
> check we now do in TikaInputStream to identify parsers that read an EOF >
> 1000 times, which may be a sign of an infinite loop.
> When I turn off this safety check in TikaInputStream, I get an infinite loop.
> This is one of the triggering files:
> https://corpora.tika.apache.org/base/docs/commoncrawl3/OE/OELHPKYAQPDNDWC535NE23Z6FKYRMN7W
> It's a truncated file from Common Crawl.
> The stacktrace when this is thrown is:
> {noformat}
> afterRead:809, TikaInputStream (org.apache.tika.io)
> read:82, ProxyInputStream (org.apache.commons.io.input)
> <init>:113, RandomAccessReadBuffer (org.apache.pdfbox.io)
> loadPDF:454, Loader (org.apache.pdfbox)
> loadPDF:430, Loader (org.apache.pdfbox)
> getPDDocument:189, PDFParser (org.apache.tika.parser.pdf)
> parse:148, PDFParser (org.apache.tika.parser.pdf)
> parse:288, CompositeParser (org.apache.tika.parser)
> parse:288, CompositeParser (org.apache.tika.parser)
> parse:150, AutoDetectParser (org.apache.tika.parser)
> parse:157, RecursiveParserWrapper (org.apache.tika.parser)
> getRecursiveMetadata:379, TikaTest (org.apache.tika)
> getRecursiveMetadata:369, TikaTest (org.apache.tika)
> getRecursiveMetadata:357, TikaTest (org.apache.tika)
> getRecursiveMetadata:351, TikaTest (org.apache.tika)
> {noformat}
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