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From: Hagen von Eitzen <[EMAIL PROTECTED]>
To: Debian Bug Tracking System <[EMAIL PROTECTED]>
Subject: libpdf-api2-perl: Infinite recursion and OOM possible during copying
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Date: Fri, 19 Nov 2004 14:00:58 +0100
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Package: libpdf-api2-perl
Version: 0.3r77-2
Severity: normal
Tags: security
-- System Information:
Debian Release: 3.1
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.8-tyan-2.6.8
Locale: LANG=C, LC_CTYPE=C
Versions of packages libpdf-api2-perl depends on:
ii libcompress-zlib-perl 1.33-3 Perl module for creation and manip
ii perl 5.8.4-3 Larry Wall's Practical Extraction
-- no debconf information
Using essentially the following code
#!/usr/bin/perl -e PDF::API2;
... # calculate $infile=valid path, $outfn=valid path, $i=valid page
number
$pdf = PDF::API2->open($infile);
$outpdf = PDF::API2->new( -file => $outfn );
$outpdf->preferences(-hidemenubar =>1,-hidetoolbar=>1,-hidewindowui=>1);
$outpdf->importpage($pdf, $i, 0);
$outpdf->update;
$outpdf->end;
$pdf->end;
to extract single pages from multi-page pdf documents, I found that
certain documents would produce an infinite recursion and ultimately
crash the process with an Out Of Memory exception.
The code worked well with various documents, but I have a real life
test document (can mail it if requested) that displays correctly in
Acrobat Reader and some pages can be extracted whereas page 2
(happens to be table of contents) cannot.
These are the error messages produced, apparently during importpage:
Deep recursion on subroutine "PDF::API2::PDF::Objind::copy" at
/usr/share/perl5/PDF/API2/PDF/Objind.pm line 317.
Deep recursion on subroutine "PDF::API2::PDF::Objind::copy" at
/usr/share/perl5/PDF/API2/PDF/Objind.pm line 317.
Deep recursion on subroutine "PDF::API2::PDF::Objind::copy" at
/usr/share/perl5/PDF/API2/PDF/Array.pm line 142.
Deep recursion on subroutine "PDF::API2::PDF::Objind::copy" at
/usr/share/perl5/PDF/API2/PDF/Array.pm line 149.
Deep recursion on subroutine "PDF::API2::PDF::Array::copy" at
/usr/share/perl5/PDF/API2/PDF/Objind.pm line 317.
Deep recursion on subroutine "PDF::API2::PDF::Array::copy" at
/usr/share/perl5/PDF/API2/PDF/Objind.pm line 317.
Deep recursion on subroutine "PDF::API2::PDF::Array::copy" at
/usr/share/perl5/PDF/API2/PDF/Objind.pm line 317.
SECURITY:
Someone submitting a suitable (not even crafted) document to that
service might cause an OOM exception and/or time consumption up to
denial of service.
---------------------------------------
Received: (at 282054-done) by bugs.debian.org; 31 Mar 2005 22:48:03 +0000
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Date: Thu, 31 Mar 2005 16:47:30 -0600
From: Gunnar Wolf <[EMAIL PROTECTED]>
Subject: Re: libpdf-api2-perl: Infinite recursion and OOM possible
duringcopying
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Hi,
We went through the whole 0.40 series of the module without being able
to reproduce this bug. I will be shortly uploading 0.41.00... I think
this bug can now be seen as nonexistant.
Greetings,
--
Gunnar Wolf - [EMAIL PROTECTED] - (+52-55)1451-2244 / 5554-9450
PGP key 1024D/8BB527AF 2001-10-23
Fingerprint: 0C79 D2D1 2C4E 9CE4 5973 F800 D80E F35A 8BB5 27AF
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