[Poppler-bugs] [Bug 63190] New: malformed embedded fonts cause high memory consumption

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=63190

          Priority: medium
            Bug ID: 63190
          Keywords: security
          Assignee: poppler-bugs at lists.freedesktop.org
           Summary: malformed embedded fonts cause high memory consumption
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: roberto.toledano at datys.cu
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: utils
           Product: poppler

Created attachment 77502
  --> https://bugs.freedesktop.org/attachment.cgi?id=77502&action=edit
PDF File font problem

Using pdftotext on the attached "FRA_2803_DE_FD_1B686455.pdf" to extract the
text, the program is consuming memory indefinitely until exhausting all OS. The
tests were conducted in OpenSuse 12.1, Ubuntu 12.04 and Ubuntu 12.10, with
versions 0.18.0, 0.20.4 and 0.22.2 of pdftotext. Also tested with other tools
like pdftoppm pdftohtml and give the same result. The standard output of the
command is also attached (output.txt), showing that the font is not recognized.

I think there is a problem with rendering embedded fonts that are corrupt
within the PDF document. Try Open it with Adobe Reader and returns the
following message: "The font 'FrutigerLT-Cn' Contain a bad / BBox", but can be
saved as text

Due to the high memory consumption, try searching for memory leaks but running
valgrind on version 0.22.0 of pdftotext not report any leaks.

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