Check for width of zero

diff --git a/coders/xpm.c b/coders/xpm.c
index b323d8d944c5fae8f77d5c744f21e4131298ad65..15334ae6879e546145740165dc86a7a2315e1d42 100644 (file)
--- a/coders/xpm.c
+++ b/coders/xpm.c
@@ -336,7 +336,7 @@ static Image *ReadXPMImage(const ImageInfo *image_info,ExceptionInfo *exception)
     if (count == 4)
       break;
   }
-  if ((count != 4) || (width > 10) || (image->columns == 0) ||
+  if ((count != 4) || (width == 0) || (width > 10) || (image->columns == 0) ||
       (image->rows == 0) || (image->colors == 0))
     ThrowReaderException(CorruptImageError,"ImproperImageHeader");
   /*