Properly initialize all fields of a SSL object after allocation.
diff --git a/Misc/NEWS b/Misc/NEWS
index 2984b57..af6ed7e 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -32,6 +32,8 @@
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 9164a65..d95568c 100644
--- a/Modules/_ssl.c
+++ b/Modules/_ssl.c
@@ -286,6 +286,7 @@
self->ssl = NULL;
self->ctx = NULL;
self->Socket = NULL;
+ self->shutdown_seen_zero = 0;
/* Make sure the SSL error state is initialized */
(void) ERR_get_state();