File poppler-CVE-2022-37051.patch of Package poppler

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File poppler-CVE-2022-37051.patch of Package poppler

Index: poppler-0.43.0/utils/pdfunite.cc
===================================================================
--- poppler-0.43.0.orig/utils/pdfunite.cc
+++ poppler-0.43.0/utils/pdfunite.cc
@@ -244,6 +244,14 @@ int main (int argc, char *argv[])
   if (docs.size() >= 1) {
     Object catObj;
     docs[0]->getXRef()->getCatalog(&catObj);
+    if(!catObj.isDict()){
+        fclose(f);
+        delete yRef;
+        delete countRef;
+        delete outStr;
+        error(errSyntaxError, -1, "XRef's Catalog is not a dictionary.");
+        return -1;
+    }
     Dict *catDict = catObj.getDict();
     catDict->lookup("OutputIntents", &intents);
     catDict->lookupNF("AcroForm", &afObj);
@@ -366,6 +374,14 @@ int main (int argc, char *argv[])
     }
     Object pageCatObj, pageNames;
     docs[i]->getXRef()->getCatalog(&pageCatObj);
+    if(!pageCatObj.isDict()){
+        fclose(f);
+        delete yRef;
+        delete countRef;
+        delete outStr;
+        error(errSyntaxError, -1, "XRef's Catalog is not a dictionary.");
+        return -1;
+    }
     Dict *pageCatDict = pageCatObj.getDict();
     pageCatDict->lookup("Names", &pageNames);
     if (!pageNames.isNull() && pageNames.isDict()) {

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File poppler-CVE-2022-37051.patch of Package poppler

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