ITS#8027 require non-empty AttributeList

diff --git a/servers/slapd/overlays/deref.c b/servers/slapd/overlays/deref.c
index 9420e3e37990ae92e1cd7ceb70f34ba59c865f6b..05aa890eea365942b8093a7c7e21be13ef147ecb 100644 (file)
--- a/servers/slapd/overlays/deref.c
+++ b/servers/slapd/overlays/deref.c
@@ -183,7 +183,8 @@ deref_parseCtrl (
                ber_len_t cnt = sizeof(struct berval);
                ber_len_t off = 0;
 
-               if ( ber_scanf( ber, "{m{M}}", &derefAttr, &attributes, &cnt, off ) == LBER_ERROR )
+               if ( ber_scanf( ber, "{m{M}}", &derefAttr, &attributes, &cnt, off ) == LBER_ERROR
+                       || !cnt )
                {
                        rs->sr_text = "Dereference control: derefSpec decoding error";
                        rs->sr_err = LDAP_PROTOCOL_ERROR;