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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (Jira)" <ji...@apache.org> on 2021/02/22 18:29:00 UTC
[jira] [Resolved] (PDFBOX-5105) IllegalArgumentException in
computeEncryptedKeyRev56
[ https://issues.apache.org/jira/browse/PDFBOX-5105?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tilman Hausherr resolved PDFBOX-5105.
-------------------------------------
Fix Version/s: 3.0.0 PDFBox
2.0.23
Assignee: Tilman Hausherr
Resolution: Fixed
Thanks for the report. Like the other one, I don't want to create a new exception class, but you're right to report it, we try to avoid unchecked exceptions.
> IllegalArgumentException in computeEncryptedKeyRev56
> ----------------------------------------------------
>
> Key: PDFBOX-5105
> URL: https://issues.apache.org/jira/browse/PDFBOX-5105
> Project: PDFBox
> Issue Type: Bug
> Components: Crypto
> Affects Versions: 2.0.22, 3.0.0 PDFBox
> Reporter: Fabian Meumertzheim
> Assignee: Tilman Hausherr
> Priority: Minor
> Fix For: 2.0.23, 3.0.0 PDFBox
>
> Attachments: crash-1db33f5d58786db4ab9f87b8334987127f26aad9.pdf
>
>
> The attached PDF generates the following stack trace when loaded via Loader.loadPDF (using current Git revision 877fe27feaa36e7d24119b053ef41c4247f0691d):
> java.lang.IllegalArgumentException: Null input buffer
> at java.base/javax.crypto.Cipher.doFinal(Cipher.java:2201)
> at org.apache.pdfbox.pdmodel.encryption.StandardSecurityHandler.computeEncryptedKeyRev56(StandardSecurityHandler.java:751)
> at org.apache.pdfbox.pdmodel.encryption.StandardSecurityHandler.computeEncryptedKey(StandardSecurityHandler.java:658)
> at org.apache.pdfbox.pdmodel.encryption.StandardSecurityHandler.prepareForDecryption(StandardSecurityHandler.java:210)
> at org.apache.pdfbox.pdfparser.COSParser.prepareDecryption(COSParser.java:2522)
> at org.apache.pdfbox.pdfparser.COSParser.rebuildTrailer(COSParser.java:1885)
> at org.apache.pdfbox.pdfparser.COSParser.retrieveTrailer(COSParser.java:263)
> at org.apache.pdfbox.pdfparser.PDFParser.initialParse(PDFParser.java:127)
> at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:180)
> at org.apache.pdfbox.pdfparser.PDFParser.parse(PDFParser.java:154)
> at org.apache.pdfbox.Loader.loadPDF(Loader.java:204)
> at com.example.PdfBoxFuzzer.fuzzerTestOneInput(PdfBoxFuzzer.java:31)
> While the PDF is clearly broken, the type of thrown exception is unexpected (not an IOException).
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