--- ./sysdeputil.c.orig	2012-09-15 23:18:04.000000000 -0500
+++ ./sysdeputil.c	2016-06-12 23:49:19.539253144 -0500
@@ -285,7 +285,7 @@
         return 0;
       }
       p_crypted = crypt(str_getbuf(p_pass_str), p_spwd->sp_pwdp);
-      if (!vsf_sysutil_strcmp(p_crypted, p_spwd->sp_pwdp))
+      if (p_crypted != NULL && !vsf_sysutil_strcmp(p_crypted, p_spwd->sp_pwdp))
       {
         return 1;
       }
@@ -293,7 +293,7 @@
   }
   #endif /* VSF_SYSDEP_HAVE_SHADOW */
   p_crypted = crypt(str_getbuf(p_pass_str), p_pwd->pw_passwd);
-  if (!vsf_sysutil_strcmp(p_crypted, p_pwd->pw_passwd))
+  if (p_crypted != NULL && !vsf_sysutil_strcmp(p_crypted, p_pwd->pw_passwd))
   {
     return 1;
   }