From: Sebastian Marsching <sebastian-git-2016@marsching.com>
Date: Tue, 8 Oct 2024 19:05:35 +0000 (+0200)
Subject: [Fix] Avoid null-bytes in Log-Tag header value.
X-Git-Tag: 3.10.1~10^2
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=2a8c894e714440ff64df56a582944dfebae55c8f;p=rspamd.git

[Fix] Avoid null-bytes in Log-Tag header value.

This fixes #5178.
---

diff --git a/src/rspamd_proxy.c b/src/rspamd_proxy.c
index dbdd2e5a7..e2a866178 100644
--- a/src/rspamd_proxy.c
+++ b/src/rspamd_proxy.c
@@ -38,6 +38,7 @@
 #include "libmime/lang_detection.h"
 
 #include <math.h>
+#include <string.h>
 
 #ifdef HAVE_NETINET_TCP_H
 #include <netinet/tcp.h> /* for TCP_NODELAY */
@@ -2205,7 +2206,7 @@ proxy_client_finish_handler(struct rspamd_http_connection *conn,
 		rspamd_http_message_remove_header(msg, "Connection");
 		rspamd_http_message_remove_header(msg, "Key");
 		rspamd_http_message_add_header_len(msg, LOG_TAG_HEADER, session->pool->tag.uid,
-										   sizeof(session->pool->tag.uid));
+										   strnlen(session->pool->tag.uid, sizeof(session->pool->tag.uid)));
 
 		proxy_open_mirror_connections(session);
 		rspamd_http_connection_reset(session->client_conn);