[jira] [Resolved] (PDFBOX-2655) PDCIDFontType2Embedder.buildCIDSet() ArrayOutOfBounds

["John Hewson (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PDFBOX-2655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

John Hewson resolved PDFBOX-2655.
---------------------------------
       Resolution: Fixed
    Fix Version/s: 2.0.0

> PDCIDFontType2Embedder.buildCIDSet()  ArrayOutOfBounds
> ------------------------------------------------------
>
>                 Key: PDFBOX-2655
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-2655
>             Project: PDFBox
>          Issue Type: Bug
>          Components: PDModel
>    Affects Versions: 2.0.0
>            Reporter: Alex Nevidomsky
>            Assignee: John Hewson
>             Fix For: 2.0.0
>
>
> {code}
> byte[] bytes = new byte[(Collections.max(cidToGid.keySet()) + 7) / 8];
> ...
> bytes[cid / 8] |= mask;
> {code}
> Problem:
> [(N+7)/8] is not enough to store N/8 when N=8k (for example, 8).
> (N+8)/8 or N/8+1 seem to solve the problem, but not sure about the potential remote consequences.
> Test case:
> {code}
> 		PDDocument document = new PDDocument();
> 		PDPage page = new PDPage(PDRectangle.A4);
> 		document.addPage(page);
> 		String dir = "../../resources/";
> 		PDType0Font font = PDType0Font.load(document, new File(dir + "LiberationSans-Regular.ttf"));
> 		PDPageContentStream stream = new PDPageContentStream(document, page);
> 		stream.beginText();
> 		stream.setFont(font, 12);
> 		stream.setLeading(12 * 1.2);
> 		stream.newLineAtOffset(50, 600);
> 		//This particular Russian letter has been
> 		//a trouble maker in computer system for decades )
> 		stream.showText("я");
> 		stream.endText();
> 		stream.close();
> 		document.save("example.pdf");
> 		document.close();
> {code}



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