nginx 0.4.14 *) Feature: the "proxy_pass_error_message" directive in IMAP/POP3 proxy. *) Feature: now configure detects system PCRE library on FreeBSD, Linux, and NetBSD. *) Bugfix: ngx_http_perl_module did not work with perl built with the threads support; bug appeared in 0.3.38. *) Bugfix: ngx_http_perl_module did not work if perl was called recursively. *) Bugfix: nginx ignored a host name in an request line. *) Bugfix: a worker process may got caught in an endless loop, if a FastCGI server sent too many data to the stderr. *) Bugfix: the $upstream_response_time variable may be negative if the system time was changed backward. *) Bugfix: the "Auth-Login-Attempt" parameter was not sent to IMAP/POP3 proxy authentication server when POP3 was used. *) Bugfix: a segmentation fault might occur if connect to IMAP/POP3 proxy authentication server failed.

--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -1385,8 +1385,15 @@ ngx_http_find_virtual_server(ngx_http_re
     ngx_http_core_loc_conf_t  *clcf;
     ngx_http_core_srv_conf_t  *cscf;
 
-    host = r->headers_in.host->value.data;
-    len = r->headers_in.host_name_len;
+    host = r->host_start;
+
+    if (host == NULL) {
+        host = r->headers_in.host->value.data;
+        len = r->headers_in.host_name_len;
+
+    } else {
+        len = r->host_end - host;
+    }
 
     if (vn->hash.buckets) {
         cscf = ngx_hash_find(&vn->hash, hash, host, len);