File 0004-Fix-for-CVE-2017-5854.patch of Package podofo

Subject: Fix for CVE-2017-5854
Url: https://sourceforge.net/p/podofo/code/1836/

--- a/podofo/trunk/tools/podofopdfinfo/pdfinfo.cpp
+++ b/podofo/trunk/tools/podofopdfinfo/pdfinfo.cpp
@@ -207,6 +207,10 @@
 	for ( int pg=0; pg<pgCount; pg++ ) 
 	{
 		curPage = mDoc->GetPage( pg );
+		if( !curPage )
+		{
+			PODOFO_RAISE_ERROR( PoDoFo::ePdfError_PageNotFound );
+		}
 		rect = curPage->GetMediaBox();
 		Format s( rect.GetWidth() - rect.GetLeft(), rect.GetHeight() - rect.GetBottom());
 		sIt = sizes.find(s);