Index: gnutls-1.6.1/src/crypt.c
===================================================================
--- gnutls-1.6.1.orig/src/crypt.c
+++ gnutls-1.6.1/src/crypt.c
@@ -220,6 +220,7 @@ _verify_passwd_int (const char *username
 
   /* encode the verifier into _salt */
   salt_size = sizeof (_salt);
+  memset(_salt, '\0', salt_size);
   if (gnutls_srp_base64_encode (&new_verifier, _salt, &salt_size) < 0)
     {
       fprintf (stderr, "Encoding error\n");