File libpng-1.2.31-CVE-2008-5907.patch of Package libpng12-0

--- pngwutil.c
+++ pngwutil.c
@@ -1338,7 +1338,7 @@
    if (key_len > 79)
    {
       png_warning(png_ptr, "keyword length must be 1 - 79 characters");
-      new_key[79] = '\0';
+      (*new_key)[79] = '\0';
       key_len = 79;
    }