File GraphicsMagick-CVE-2017-8353.patch of Package GraphicsMagick.7893

Index: GraphicsMagick-1.3.25/coders/pict.c
===================================================================
--- GraphicsMagick-1.3.25.orig/coders/pict.c	2017-05-15 12:53:56.367268618 +0200
+++ GraphicsMagick-1.3.25/coders/pict.c	2017-05-15 12:52:23.241649780 +0200
@@ -1086,7 +1086,10 @@ static Image *ReadPICTImage(const ImageI
               {
                 ReadPixmap(pixmap);
                 if (!ValidatePixmap(pixmap))
+                {
+                  DestroyImage(tile_image);
                   ThrowPICTReaderException(CorruptImageError,ImproperImageHeader,image);
+                }
                 tile_image->matte=pixmap.component_count == 4;
               }
             if ((code != 0x9a) && (code != 0x9b))
@@ -1138,10 +1141,16 @@ static Image *ReadPICTImage(const ImageI
               }
             ReadRectangle(source);
             if (!ValidateRectangle(source))
+            {
+              DestroyImage(tile_image);
               ThrowPICTReaderException(CorruptImageError,ImproperImageHeader,image);
+            }
             ReadRectangle(destination);
             if (!ValidateRectangle(destination))
+            {
+              DestroyImage(tile_image);
               ThrowPICTReaderException(CorruptImageError,ImproperImageHeader,image);
+            }
             (void) ReadBlobMSBShort(image);
             if ((code == 0x91) || (code == 0x99) || (code == 0x9b))
               {