File poppler-CVE-2018-19060.patch of Package poppler.30207

Index: poppler-0.24.4/utils/pdfdetach.cc
===================================================================
--- poppler-0.24.4.orig/utils/pdfdetach.cc
+++ poppler-0.24.4/utils/pdfdetach.cc
@@ -184,14 +184,18 @@ int main(int argc, char *argv[]) {
       fileSpec = static_cast<FileSpec *>(embeddedFiles->get(i));
       printf("%d: ", i+1);
       s1 = fileSpec->getFileName();
-      if ((s1->getChar(0) & 0xff) == 0xfe && (s1->getChar(1) & 0xff) == 0xff) {
+      if (!s1) {
+       exitCode = 3;
+       goto err2;
+      } 
+      if (s1->hasUnicodeMarker()) {
         isUnicode = gTrue;
         j = 2;
       } else {
         isUnicode = gFalse;
         j = 0;
       }
-      while (j < fileSpec->getFileName()->getLength()) {
+      while (j < s1->getLength()) {
         if (isUnicode) {
           u = ((s1->getChar(j) & 0xff) << 8) | (s1->getChar(j+1) & 0xff);
           j += 2;
@@ -221,14 +225,18 @@ int main(int argc, char *argv[]) {
 	p = path;
       }
       s1 = fileSpec->getFileName();
-      if ((s1->getChar(0) & 0xff) == 0xfe && (s1->getChar(1) & 0xff) == 0xff) {
+      if (!s1) {
+       exitCode = 3;
+       goto err2;
+      }
+      if (s1->hasUnicodeMarker()) {
         isUnicode = gTrue;
         j = 2;
       } else {
         isUnicode = gFalse;
         j = 0;
       }
-      while (j < fileSpec->getFileName()->getLength()) {
+      while (j < s1->getLength()) {
         if (isUnicode) {
           u = ((s1->getChar(j) & 0xff) << 8) | (s1->getChar(j+1) & 0xff);
           j += 2;
@@ -264,14 +272,18 @@ int main(int argc, char *argv[]) {
     } else {
       p = path;
       s1 = fileSpec->getFileName();
-      if ((s1->getChar(0) & 0xff) == 0xfe && (s1->getChar(1) & 0xff) == 0xff) {
+      if (!s1) {
+       exitCode = 3;
+       goto err2;
+      }
+      if (s1->hasUnicodeMarker()) {
         isUnicode = gTrue;
         j = 2;
       } else {
         isUnicode = gFalse;
         j = 0;
       }
-      while (j < fileSpec->getFileName()->getLength()) {
+      while (j < s1->getLength()) {
         if (isUnicode) {
           u = ((s1->getChar(j) & 0xff) << 8) | (s1->getChar(j+1) & 0xff);
           j += 2;