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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (Jira)" <ji...@apache.org> on 2021/04/09 06:35:00 UTC
[jira] [Resolved] (PDFBOX-5158) Infinite loop on corrupted PDF in
3.0.0-SNAPSHOT
[ https://issues.apache.org/jira/browse/PDFBOX-5158?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tilman Hausherr resolved PDFBOX-5158.
-------------------------------------
Assignee: Tilman Hausherr
Resolution: Fixed
Thanks [~tallison] fo the report and [~lehmi] for the review!
> 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
> Assignee: Tilman Hausherr
> Priority: Critical
> Fix For: 3.0.0 PDFBox
>
>
> 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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