https://github.com/ImageMagick/ImageMagick/issues/1546

ImageMagick · Apr 14, 2019 · f663dfb · f663dfb
1 parent 9204adf
commit f663dfb
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/coders/xwd.c b/coders/xwd.c
@@ -243,6 +243,9 @@ static Image *ReadXWDImage(const ImageInfo *image_info,ExceptionInfo *exception)
     ThrowReaderException(CorruptImageError,"ImproperImageHeader");
   if ((header.bits_per_pixel == 0) || (header.bits_per_pixel > 32))
     ThrowReaderException(CorruptImageError,"ImproperImageHeader");
+  if ((header.bitmap_bit_order != MSBFirst) &&
+      (header.bitmap_bit_order != LSBFirst))
+    ThrowReaderException(CorruptImageError,"ImproperImageHeader");
   if (((header.bitmap_pad % 8) != 0) || (header.bitmap_pad > 32))
     ThrowReaderException(CorruptImageError,"ImproperImageHeader");
   if (header.bitmap_unit > 32)