--- oiio-Release-1.8.16/src/pnm.imageio/pnminput.cpp.orig	2018-11-30 21:59:59.037519700 +0300
+++ oiio-Release-1.8.16/src/pnm.imageio/pnminput.cpp	2018-11-30 22:00:26.981118000 +0300
@@ -331,7 +331,8 @@
 PNMInput::read_file_header()
 {
     try {
-        unsigned int width, height;
+        unsigned int width = 0;
+        unsigned int height = 0;
         char c;
         if (!m_file)
             return false;
