File ImageMagick-CVE-2017-17680,17882.patch of Package ImageMagick.8768

Index: ImageMagick-6.8.8-1/coders/xpm.c
===================================================================
--- ImageMagick-6.8.8-1.orig/coders/xpm.c	2018-01-02 13:27:01.087547432 +0100
+++ ImageMagick-6.8.8-1/coders/xpm.c	2018-01-02 14:24:11.468444201 +0100
@@ -329,7 +329,10 @@ static Image *ReadXPMImage(const ImageIn
   }
   if ((count != 4) || (width > 10) || (image->columns == 0) ||
       (image->rows == 0) || (image->colors == 0))
+  {
+    xpm_buffer=DestroyString(xpm_buffer);
     ThrowReaderException(CorruptImageError,"ImproperImageHeader");
+  }
   /*
     Remove unquoted characters.
   */
@@ -353,7 +356,11 @@ static Image *ReadXPMImage(const ImageIn
   xpm_colors=NewSplayTree(CompareXPMColor,RelinquishMagickMemory,
     (void *(*)(void *)) NULL);
   if (AcquireImageColormap(image,image->colors) == MagickFalse)
+  {
+    xpm_buffer=DestroyString(xpm_buffer);
+    xpm_colors=DestroySplayTree(xpm_colors);
     ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
+  }
   /*
     Read image colormap.
   */
@@ -403,7 +410,11 @@ static Image *ReadXPMImage(const ImageIn
       image->depth=pixel.depth;
   }
   if (j < (ssize_t) image->colors)
+  {
+    xpm_buffer=DestroyString(xpm_buffer);
+    xpm_colors=DestroySplayTree(xpm_colors);
     ThrowReaderException(CorruptImageError,"CorruptImage");
+  }
   j=0;
   if (image_info->ping == MagickFalse)
     {
@@ -432,11 +443,16 @@ static Image *ReadXPMImage(const ImageIn
           break;
       }
       if (y < (ssize_t) image->rows)
+      {
+        xpm_buffer=DestroyString(xpm_buffer);
+        xpm_colors=DestroySplayTree(xpm_colors);
         ThrowReaderException(CorruptImageError,"NotEnoughPixelData");
+      }
     }
   /*
     Relinquish resources.
   */
+  xpm_buffer=DestroyString(xpm_buffer);
   xpm_colors=DestroySplayTree(xpm_colors);
   (void) CloseBlob(image);
   return(GetFirstImageInList(image));