Do not match a wildcard against a name with no host part.

ok jsing@

1 files changed, 4 insertions, 1 deletions

diff --git a/src/lib/libtls/tls_verify.c b/src/lib/libtls/tls_verify.c
index c6f29c897d..9a0f97eada 100644
--- a/src/lib/libtls/tls_verify.c
+++ b/src/lib/libtls/tls_verify.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: tls_verify.c,v 1.12 2015/09/11 12:56:55 beck Exp $ */
+/* $OpenBSD: tls_verify.c,v 1.13 2015/09/11 13:12:29 beck Exp $ */
 /*
  * Copyright (c) 2014 Jeremie Courreges-Anglas <jca@openbsd.org>
  *
@@ -69,6 +69,9 @@ tls_match_name(const char *cert_name, const char *name)
 
                 domain = strchr(name, '.');
 
+                /* No wildcard match against a name with no host part. */
+                if (name[0] == '.')
+                        return -1;
                 /* No wildcard match against a name with no domain part. */
                 if (domain == NULL || strlen(domain) == 1)
                         return -1;