File poppler-CVE-2022-38349.patch of Package poppler.31743

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File poppler-CVE-2022-38349.patch of Package poppler.31743

Index: poppler-0.24.4/poppler/PDFDoc.cc
===================================================================
--- poppler-0.24.4.orig/poppler/PDFDoc.cc
+++ poppler-0.24.4/poppler/PDFDoc.cc
@@ -1485,6 +1485,9 @@ 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("MediaBox");
   pageDict->remove("CropBox");
Index: poppler-0.24.4/utils/pdfunite.cc
===================================================================
--- poppler-0.24.4.orig/utils/pdfunite.cc
+++ poppler-0.24.4/utils/pdfunite.cc
@@ -119,6 +119,14 @@ 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;
+      }
       pages.push_back(page);
       offsets.push_back(numOffset);
       Dict *pageDict = page.getDict();

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File poppler-CVE-2022-38349.patch of Package poppler.31743

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