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https://issues.apache.org/jira/browse/PDFBOX-5624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17734197#comment-17734197
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ASF subversion and git services commented on PDFBOX-5624:
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Commit 1910492 from Timo Boehme in branch 'pdfbox/branches/2.0'
[ https://svn.apache.org/r1910492 ]
PDFBOX-5624: prevent 2 infinite loops by checking if we run out of token
> Infinte loop when parsing Type1 font
> ------------------------------------
>
> Key: PDFBOX-5624
> URL: https://issues.apache.org/jira/browse/PDFBOX-5624
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox
> Affects Versions: 2.0.28, 3.0.0 PDFBox
> Reporter: Timo Boehme
> Assignee: Timo Boehme
> Priority: Major
>
> At 2 places the Type1Parser has a loop with a negated condition on the next
> token to be read. The loops simply advances to the next token without
> checking the token to be null, which may happen if the font is
> corrupted/shortened. If this occurs the parser is stuck in the loops. This
> happens to me for one of the loops with a file which however cannot be
> shared. The 2nd loop was found by scanning the code for similar problems.
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