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Fix crash on missing embedded file

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Resolves: #1569334
This commit is contained in:
Marek Kasik 2018-10-17 11:52:20 +02:00
parent 29f9e6f502
commit 15a95ed4c7
2 changed files with 79 additions and 1 deletions
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71
poppler-0.67.0-embedded-file-check.patch Normal file
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@ -0,0 +1,71 @@
From 614514f577bbe676f736afcd8065892df8391315 Mon Sep 17 00:00:00 2001
From: Marek Kasik <mkasik@redhat.com>
Date: Fri, 20 Apr 2018 11:38:13 +0200
Subject: [PATCH] Fix crash on missing embedded file
Check whether an embedded file is actually present in the PDF
and show warning in that case.
https://bugs.freedesktop.org/show_bug.cgi?id=106137
https://gitlab.freedesktop.org/poppler/poppler/issues/236
---
glib/poppler-attachment.cc | 26 +++++++++++++++++---------
glib/poppler-document.cc | 3 ++-
2 files changed, 19 insertions(+), 10 deletions(-)
diff --git a/glib/poppler-attachment.cc b/glib/poppler-attachment.cc
index c6502e9d..11ba5bb5 100644
--- a/glib/poppler-attachment.cc
+++ b/glib/poppler-attachment.cc
@@ -111,17 +111,25 @@ _poppler_attachment_new (FileSpec *emb_file)
attachment->description = _poppler_goo_string_to_utf8 (emb_file->getDescription ());
embFile = emb_file->getEmbeddedFile();
- attachment->size = embFile->size ();
+ if (embFile != NULL && embFile->streamObject()->isStream())
+ {
+ attachment->size = embFile->size ();
- if (embFile->createDate ())
- _poppler_convert_pdf_date_to_gtime (embFile->createDate (), (time_t *)&attachment->ctime);
- if (embFile->modDate ())
- _poppler_convert_pdf_date_to_gtime (embFile->modDate (), (time_t *)&attachment->mtime);
+ if (embFile->createDate ())
+ _poppler_convert_pdf_date_to_gtime (embFile->createDate (), (time_t *)&attachment->ctime);
+ if (embFile->modDate ())
+ _poppler_convert_pdf_date_to_gtime (embFile->modDate (), (time_t *)&attachment->mtime);
- if (embFile->checksum () && embFile->checksum ()->getLength () > 0)
- attachment->checksum = g_string_new_len (embFile->checksum ()->getCString (),
- embFile->checksum ()->getLength ());
- priv->obj_stream = embFile->streamObject()->copy();
+ if (embFile->checksum () && embFile->checksum ()->getLength () > 0)
+ attachment->checksum = g_string_new_len (embFile->checksum ()->getCString (),
+ embFile->checksum ()->getLength ());
+ priv->obj_stream = embFile->streamObject()->copy();
+ }
+ else
+ {
+ g_warning ("Missing stream object for embedded file");
+ g_clear_object (&attachment);
+ }
return attachment;
}
diff --git a/glib/poppler-document.cc b/glib/poppler-document.cc
index b343eb90..df0aa47f 100644
--- a/glib/poppler-document.cc
+++ b/glib/poppler-document.cc
@@ -666,7 +666,8 @@ poppler_document_get_attachments (PopplerDocument *document)
attachment = _poppler_attachment_new (emb_file);
delete emb_file;
- retval = g_list_prepend (retval, attachment);
+ if (attachment != NULL)
+ retval = g_list_prepend (retval, attachment);
}
return g_list_reverse (retval);
}
--
2.17.0

9
poppler.spec
View File

@ -4,7 +4,7 @@
Summary: PDF rendering library Summary: PDF rendering library
Name: poppler Name: poppler
Version: 0.67.0 Version: 0.67.0
Release: 1%{?dist} Release: 2%{?dist}
License: (GPLv2 or GPLv3) and GPLv2+ and LGPLv2+ and MIT License: (GPLv2 or GPLv3) and GPLv2+ and LGPLv2+ and MIT
URL: http://poppler.freedesktop.org/ URL: http://poppler.freedesktop.org/
Source0: http://poppler.freedesktop.org/poppler-%{version}.tar.xz Source0: http://poppler.freedesktop.org/poppler-%{version}.tar.xz
@ -22,6 +22,9 @@ Patch6: poppler-0.63.0-tiling-patterns.patch
Patch7: poppler-0.67.0-qt4-const.patch Patch7: poppler-0.67.0-qt4-const.patch
# https://bugzilla.redhat.com/show_bug.cgi?id=1569334
Patch8: poppler-0.67.0-embedded-file-check.patch
BuildRequires: cmake BuildRequires: cmake
BuildRequires: gcc-c++ BuildRequires: gcc-c++
BuildRequires: gettext-devel BuildRequires: gettext-devel
@ -252,6 +255,10 @@ test "$(pkg-config --modversion poppler-splash)" = "%{version}"
%{_mandir}/man1/* %{_mandir}/man1/*
%changelog %changelog
* Wed Oct 17 2018 Marek Kasik <mkasik@redhat.com> - 0.67.0-2
- Fix crash on missing embedded file
- Resolves: #1569334
* Tue Aug 14 2018 Marek Kasik <mkasik@redhat.com> - 0.67.0-1 * Tue Aug 14 2018 Marek Kasik <mkasik@redhat.com> - 0.67.0-1
- Update to 0.67.0 - Update to 0.67.0
- Resolves: #1568641 - Resolves: #1568641