From: Victor Julien <victor@inliniac.net>
Date: Fri, 1 Dec 2017 08:23:29 +0000 (+0100)
Subject: detect/http_start: check if 'line' is valid
X-Git-Tag: suricata-4.1.0-beta1~521
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a1f8cf40e233fdf7a604ad6f4b28cc489324aecb;p=thirdparty%2Fsuricata.git

detect/http_start: check if 'line' is valid

In certain conditions like low memory the line can be NULL.

Bug #2307.
---

diff --git a/src/detect-http-start.c b/src/detect-http-start.c
index 2d587dc228..914ecca4cd 100644
--- a/src/detect-http-start.c
+++ b/src/detect-http-start.c
@@ -109,7 +109,7 @@ static uint8_t *GetBufferForTX(htp_tx_t *tx, uint64_t tx_id,
         headers = tx->response_headers;
         line = tx->response_line;
     }
-    if (headers == NULL)
+    if (line == NULL || headers == NULL)
         return NULL;
 
     size_t line_size = bstr_len(line) + 2;