Properly initialize all fields of a SSL object after allocation.
diff --git a/Misc/NEWS b/Misc/NEWS
index 6a4c05e..63601d8 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -71,6 +71,8 @@
Library
-------
+- Properly initialize all fields of a SSL object after allocation.
+
- Issue #4366: Fix building extensions on all platforms when --enable-shared
is used.
diff --git a/Modules/_ssl.c b/Modules/_ssl.c
index 1ae543f..448114b 100644
--- a/Modules/_ssl.c
+++ b/Modules/_ssl.c
@@ -455,6 +455,7 @@
self->peer_cert = NULL;
self->ssl = NULL;
self->Socket = NULL;
+ self->shutdown_seen_zero = 0;
/* Make sure the SSL error state is initialized */
(void) ERR_get_state();