From: Tim Düsterhus <duesterhus@woltlab.com>
Date: Mon, 11 Jan 2021 11:18:00 +0000 (+0100)
Subject: Properly detect EOF in SmtpEmailTransport::read()
X-Git-Tag: 5.3.3~30^2
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=31e3e9d3175c43e9c16ae9e8b571d79bf80c7623;p=GitHub%2FWoltLab%2FWCF.git

Properly detect EOF in SmtpEmailTransport::read()
---

diff --git a/wcfsetup/install/files/lib/system/email/transport/SmtpEmailTransport.class.php b/wcfsetup/install/files/lib/system/email/transport/SmtpEmailTransport.class.php
index d68d456d58..59e710f49b 100644
--- a/wcfsetup/install/files/lib/system/email/transport/SmtpEmailTransport.class.php
+++ b/wcfsetup/install/files/lib/system/email/transport/SmtpEmailTransport.class.php
@@ -201,6 +201,10 @@ class SmtpEmailTransport implements IEmailTransport {
 				}
 			}
 			else {
+				if ($this->connection->eof()) {
+					throw new TransientFailure("Unexpected EOF / connection close from SMTP server.");
+				}
+				
 				throw new TransientFailure("Unexpected reply '".$data."' from SMTP server.");
 			}
 		}