File poppler-CVE-2022-38349.patch of Package poppler.30682

Index: poppler-0.43.0/poppler/PDFDoc.cc
===================================================================
--- poppler-0.43.0.orig/poppler/PDFDoc.cc
+++ poppler-0.43.0/poppler/PDFDoc.cc
@@ -1622,6 +1622,9 @@ void PDFDoc::replacePageDict(int pageNo,
   Ref *refPage = getCatalog()->getPageRef(pageNo);
   Object page;
   getXRef()->fetch(refPage->num, refPage->gen, &page);
+  if (!page.isDict()) {
+    return;
+  }
   Dict *pageDict = page.getDict();
   pageDict->remove("MediaBoxssdf");
   pageDict->remove("MediaBox");
Index: poppler-0.43.0/utils/pdfunite.cc
===================================================================
--- poppler-0.43.0.orig/utils/pdfunite.cc
+++ poppler-0.43.0/utils/pdfunite.cc
@@ -354,6 +354,14 @@ int main (int argc, char *argv[])
       Ref *refPage = docs[i]->getCatalog()->getPageRef(j);
       Object page;
       docs[i]->getXRef()->fetch(refPage->num, refPage->gen, &page);
+      if (!page.isDict()) {
+          fclose(f);
+          delete yRef;
+          delete countRef;
+          delete outStr;
+          error(errSyntaxError, -1, "PDFDoc::replacePageDict failed.");
+          return -1;
+      }
       Dict *pageDict = page.getDict();
       Dict *resDict = docs[i]->getCatalog()->getPage(j)->getResourceDict();
       if (resDict) {