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Check isDict before calling getDict 2

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Resolves: #2189841
This commit is contained in:
Marek Kasik 2023-06-09 16:04:03 +02:00
parent bc9dc84d99
commit ac5cddc7c2
2 changed files with 42 additions and 1 deletions
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34
poppler-21.01.0-check-isDict.patch Normal file
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@ -0,0 +1,34 @@
--- a/poppler/PDFDoc.cc
+++ b/poppler/PDFDoc.cc
@@ -1757,6 +1757,9 @@ void PDFDoc::replacePageDict(int pageNo,
{
Ref *refPage = getCatalog()->getPageRef(pageNo);
Object page = getXRef()->fetch(*refPage);
+ if (!page.isDict()) {
+ return;
+ }
Dict *pageDict = page.getDict();
pageDict->remove("MediaBoxssdf");
pageDict->remove("MediaBox");
--- a/utils/pdfunite.cc
+++ b/utils/pdfunite.cc
@@ -293,9 +293,18 @@ int main(int argc, char *argv[])
const PDFRectangle *cropBox = nullptr;
if (docs[i]->getCatalog()->getPage(j)->isCropped())
cropBox = docs[i]->getCatalog()->getPage(j)->getCropBox();
- docs[i]->replacePageDict(j, docs[i]->getCatalog()->getPage(j)->getRotate(), docs[i]->getCatalog()->getPage(j)->getMediaBox(), cropBox);
Ref *refPage = docs[i]->getCatalog()->getPageRef(j);
Object page = docs[i]->getXRef()->fetch(*refPage);
+ if (!page.isDict()) {
+ fclose(f);
+ delete yRef;
+ delete countRef;
+ delete outStr;
+ error(errSyntaxError, -1, "PDFDoc::replacePageDict failed.");
+ return -1;
+ } else {
+ docs[i]->replacePageDict(j, docs[i]->getCatalog()->getPage(j)->getRotate(), docs[i]->getCatalog()->getPage(j)->getMediaBox(), cropBox);
+ }
Dict *pageDict = page.getDict();
Object *resDict = docs[i]->getCatalog()->getPage(j)->getResourceDictObject();
if (resDict->isDict()) {

9
poppler.spec
View File

@ -3,7 +3,7 @@
Summary: PDF rendering library
Name: poppler
Version: 21.01.0
Release: 16%{?dist}
Release: 17%{?dist}
License: (GPLv2 or GPLv3) and GPLv2+ and LGPLv2+ and MIT
URL: http://poppler.freedesktop.org/
Source0: http://poppler.freedesktop.org/poppler-%{version}.tar.xz
@ -41,6 +41,9 @@ Patch9: poppler-21.01.0-pdfunite-broken-document.patch
# https://bugzilla.redhat.com/show_bug.cgi?id=2189811
Patch10: poppler-21.01.0-pdfunite-check-isDict.patch
# https://bugzilla.redhat.com/show_bug.cgi?id=2189814
Patch11: poppler-21.01.0-check-isDict.patch
BuildRequires: make
BuildRequires: cmake
BuildRequires: gcc-c++
@ -234,6 +237,10 @@ test "$(pkg-config --modversion poppler-qt5)" = "%{version}"
%{_mandir}/man1/*
%changelog
* Fri Jun 9 2023 Marek Kasik <mkasik@redhat.com> - 21.01.0-17
- Check isDict before calling getDict 2
- Resolves: #2189841
* Fri Jun 9 2023 Marek Kasik <mkasik@redhat.com> - 21.01.0-16
- Check isDict before calling getDict
- Resolves: #2189827