[jira] [Resolved] (PDFBOX-4777) Avoid OOM for malformed PDFs using a huge First valkue within object streams

["Andreas Lehmkühler (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PDFBOX-4777?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andreas Lehmkühler resolved PDFBOX-4777.
----------------------------------------
    Resolution: Fixed

The attached pdfs are using huge values for the "First" entry of a compressed object stream which lead to the OOM exception. The trunk isn't affected due to a refactoring of the code in question. I've backported the code from the trunk to fix the issue.
The bug was triggered only for malformed pdfs as the problematic code was part of the brute force parser.

[~tallison] Thanks for the pointer


> Avoid OOM for malformed PDFs using a huge First valkue within object streams
> ----------------------------------------------------------------------------
>
>                 Key: PDFBOX-4777
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4777
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Parsing
>    Affects Versions: 2.0.18
>            Reporter: Andreas Lehmkühler
>            Assignee: Andreas Lehmkühler
>            Priority: Major
>             Fix For: 2.0.19
>
>         Attachments: hang-070214-214127-114.pdf, hang-090214-050329-164.pdf
>
>
> [~tallison] found a bunch of problematic [pdfs|https://bugs.ghostscript.com/show_bug.cgi?id=695040] and two of those are producing an OOM exception.



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