diff -Nru gnutls28-3.6.13/debian/changelog gnutls28-3.6.13/debian/changelog
--- gnutls28-3.6.13/debian/changelog	2020-06-05 11:18:21.000000000 +0000
+++ gnutls28-3.6.13/debian/changelog	2020-06-15 15:10:12.000000000 +0000
@@ -1,3 +1,11 @@
+gnutls28 (3.6.13-2ubuntu1.2) focal; urgency=medium
+
+  * d/p/50_Update-session_ticket.c-to-add-support-for-zero-leng.patch
+    Handle zero length session tickets, fixing connection errors on
+    TLS1.2 sessions to some big hosting providers. (LP: #1876286)
+
+ -- Sebastien Bacher <seb128@ubuntu.com>  Mon, 15 Jun 2020 17:10:12 +0200
+
 gnutls28 (3.6.13-2ubuntu1.1) focal-security; urgency=medium
 
   * SECURITY UPDATE: flaw in TLS session ticket key construction
diff -Nru gnutls28-3.6.13/debian/patches/50_Update-session_ticket.c-to-add-support-for-zero-leng.patch gnutls28-3.6.13/debian/patches/50_Update-session_ticket.c-to-add-support-for-zero-leng.patch
--- gnutls28-3.6.13/debian/patches/50_Update-session_ticket.c-to-add-support-for-zero-leng.patch	1970-01-01 00:00:00.000000000 +0000
+++ gnutls28-3.6.13/debian/patches/50_Update-session_ticket.c-to-add-support-for-zero-leng.patch	2020-06-15 15:04:28.000000000 +0000
@@ -0,0 +1,46 @@
+From 1d4615aa650dad1c01452d46396c0307304b0245 Mon Sep 17 00:00:00 2001
+From: rrivers2 <5981058-rrivers2@users.noreply.gitlab.com>
+Date: Sun, 24 May 2020 23:11:01 +0000
+Subject: [PATCH] Update session_ticket.c to add support for zero length
+ session tickets returned from the server
+
+check that ticket_len > 0 prior to calling gnutls_realloc_fast
+
+Signed-off-by: Rod Rivers <5981058-rrivers2@users.noreply.gitlab.com>
+---
+ lib/ext/session_ticket.c | 18 ++++++++++--------
+ 1 file changed, 10 insertions(+), 8 deletions(-)
+
+diff --git a/lib/ext/session_ticket.c b/lib/ext/session_ticket.c
+index c854d9c2a..8d4595821 100644
+--- a/lib/ext/session_ticket.c
++++ b/lib/ext/session_ticket.c
+@@ -787,15 +787,17 @@ int _gnutls_recv_new_session_ticket(gnutls_session_t session)
+ 		ret = GNUTLS_E_MEMORY_ERROR;
+ 		goto error;
+ 	}
+-	priv->session_ticket =
+-	    gnutls_realloc_fast(priv->session_ticket, ticket_len);
+-	if (!priv->session_ticket) {
+-		gnutls_free(priv);
+-		gnutls_assert();
+-		ret = GNUTLS_E_MEMORY_ERROR;
+-		goto error;
++	if (ticket_len > 0) {
++		priv->session_ticket =
++		    gnutls_realloc_fast(priv->session_ticket, ticket_len);
++		if (!priv->session_ticket) {
++			gnutls_free(priv);
++			gnutls_assert();
++			ret = GNUTLS_E_MEMORY_ERROR;
++			goto error;
++		}
++		memcpy(priv->session_ticket, p, ticket_len);
+ 	}
+-	memcpy(priv->session_ticket, p, ticket_len);
+ 	priv->session_ticket_len = ticket_len;
+ 	epriv = priv;
+ 
+-- 
+2.26.2
+
diff -Nru gnutls28-3.6.13/debian/patches/series gnutls28-3.6.13/debian/patches/series
--- gnutls28-3.6.13/debian/patches/series	2020-06-05 11:18:13.000000000 +0000
+++ gnutls28-3.6.13/debian/patches/series	2020-06-15 15:10:12.000000000 +0000
@@ -1,3 +1,4 @@
 14_version_gettextcat.diff
 30_guile-snarf.diff
+50_Update-session_ticket.c-to-add-support-for-zero-leng.patch
 CVE-2020-13777.patch