diff -pruN 1.0.18-4.2/debian/changelog 1.0.18-4.2ubuntu4/debian/changelog
--- 1.0.18-4.2/debian/changelog	2017-10-11 07:19:11.000000000 +0000
+++ 1.0.18-4.2ubuntu4/debian/changelog	2022-03-24 12:13:25.000000000 +0000
@@ -1,3 +1,29 @@
+libmemcached (1.0.18-4.2ubuntu4) jammy; urgency=high
+
+  * No change rebuild for ppc64el baseline bump.
+
+ -- Julian Andres Klode <juliank@ubuntu.com>  Thu, 24 Mar 2022 13:13:25 +0100
+
+libmemcached (1.0.18-4.2ubuntu3) impish; urgency=medium
+
+  * No-change rebuild to build packages with zstd compression.
+
+ -- Matthias Klose <doko@ubuntu.com>  Thu, 07 Oct 2021 12:16:41 +0200
+
+libmemcached (1.0.18-4.2ubuntu2) focal; urgency=medium
+
+  * No-change rebuild for libgcc-s1 package name change.
+
+ -- Matthias Klose <doko@ubuntu.com>  Sat, 21 Mar 2020 13:36:38 +0100
+
+libmemcached (1.0.18-4.2ubuntu1) disco; urgency=medium
+
+  * d/p/fixing_missing_null_termination.patch:
+    - Fix missing null termination in PROTOCOL_BINARY_CMD_SASL_LIST_MECHS
+      response handling (LP: #1573594)
+
+ -- Ioanna Alifieraki <ioanna-maria.alifieraki@canonical.com>  Fri, 18 Jan 2019 13:04:25 +0000
+
 libmemcached (1.0.18-4.2) unstable; urgency=medium
 
   * Non-maintainer upload.
diff -pruN 1.0.18-4.2/debian/control 1.0.18-4.2ubuntu4/debian/control
--- 1.0.18-4.2/debian/control	2017-10-11 07:19:11.000000000 +0000
+++ 1.0.18-4.2ubuntu4/debian/control	2022-03-24 12:13:25.000000000 +0000
@@ -1,6 +1,7 @@
 Source: libmemcached
 Priority: optional
-Maintainer: Michael Fladischer <FladischerMichael@fladi.at>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Michael Fladischer <FladischerMichael@fladi.at>
 Build-Depends: autoconf,
                automake,
                debhelper (>= 9),
diff -pruN 1.0.18-4.2/debian/patches/fixing_missing_null_termination.patch 1.0.18-4.2ubuntu4/debian/patches/fixing_missing_null_termination.patch
--- 1.0.18-4.2/debian/patches/fixing_missing_null_termination.patch	1970-01-01 00:00:00.000000000 +0000
+++ 1.0.18-4.2ubuntu4/debian/patches/fixing_missing_null_termination.patch	2019-01-18 13:04:25.000000000 +0000
@@ -0,0 +1,16 @@
+Description: Fix missing null termination in PROTOCOL_BINARY_CMD_SASL_LIST_MECHS response handling
+Author: Ioanna Alifieraki <ioanna-maria.alifieraki@canonical.com>
+Bug-Ubuntu: https://bugs.launchpad.net/bugs/1573594
+Last-Update: 2019-01-18
+Index: libmemcached-1.0.18/libmemcached/sasl.cc
+===================================================================
+--- libmemcached-1.0.18.orig/libmemcached/sasl.cc
++++ libmemcached-1.0.18/libmemcached/sasl.cc
+@@ -171,6 +171,7 @@ memcached_return_t memcached_sasl_authen
+   memcached_server_response_increment(server);
+ 
+   char mech[MEMCACHED_MAX_BUFFER];
++  memset(mech, 0, MEMCACHED_MAX_BUFFER);
+   memcached_return_t rc= memcached_response(server, mech, sizeof(mech), NULL);
+   if (memcached_failed(rc))
+   {
diff -pruN 1.0.18-4.2/debian/patches/series 1.0.18-4.2ubuntu4/debian/patches/series
--- 1.0.18-4.2/debian/patches/series	2017-10-11 07:19:11.000000000 +0000
+++ 1.0.18-4.2ubuntu4/debian/patches/series	2019-01-18 13:04:25.000000000 +0000
@@ -5,3 +5,4 @@ c++11.patch
 move-ax_confix_aux_dir.patch
 no-docs-no-man.diff
 fix-gcc7-build.diff
+fixing_missing_null_termination.patch