From fe4dc433cc66b2fe854cd8fd50c04079995d2c22 Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@gmail.com>
Date: Thu, 11 Nov 2021 19:06:18 -0600
Subject: [PATCH] SSH2: error out when no data is received from the server

---
 phpseclib/Net/SSH2.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/phpseclib/Net/SSH2.php b/phpseclib/Net/SSH2.php
index a95a3fd8..89e57487 100644
--- a/phpseclib/Net/SSH2.php
+++ b/phpseclib/Net/SSH2.php
@@ -3537,7 +3537,8 @@ class Net_SSH2
         $raw = fread($this->fsock, $this->decrypt_block_size);
 
         if (!strlen($raw)) {
-            return '';
+            user_error('No data received from server');
+            return false;
         }
 
         if ($this->decrypt !== false) {