diff --git a/avahi-CVE-2023-38470.patch b/avahi-CVE-2023-38470.patch
new file mode 100644
index 0000000..d14d5d0
--- /dev/null
+++ b/avahi-CVE-2023-38470.patch
@@ -0,0 +1,52 @@
+From b6cf29f98adce7355e8c51a6af1e338a5f94e16e Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
+Date: Tue, 11 Apr 2023 15:29:59 +0200
+Subject: [PATCH] Ensure each label is at least one byte long
+
+The only allowed exception is single dot, where it should return empty
+string.
+
+Fixes #454.
+---
+ avahi-common/domain-test.c | 14 ++++++++++++++
+ avahi-common/domain.c      |  2 +-
+ 2 files changed, 15 insertions(+), 1 deletion(-)
+
+diff --git a/avahi-common/domain-test.c b/avahi-common/domain-test.c
+index cf763eca6..3acc1c1e4 100644
+--- a/avahi-common/domain-test.c
++++ b/avahi-common/domain-test.c
+@@ -45,6 +45,20 @@ int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char *argv[]) {
+     printf("%s\n", s = avahi_normalize_name_strdup("fo\\\\o\\..f oo."));
+     avahi_free(s);
+ 
++    printf("%s\n", s = avahi_normalize_name_strdup("."));
++    avahi_free(s);
++
++    s = avahi_normalize_name_strdup(",.=.}.=.?-.}.=.?.?.}.}.?.?.?.z.?.?.}.}."
++		    "}.?.?.?.r.=.=.}.=.?.}}.}.?.?.?.zM.=.=.?.?.}.}.?.?.}.}.}"
++		    ".?.?.?.r.=.=.}.=.?.}}.}.?.?.?.zM.=.=.?.?.}.}.?.?.?.zM.?`"
++		    "?.}.}.}.?.?.?.r.=.?.}.=.?.?.}.?.?.?.}.=.?.?.}??.}.}.?.?."
++		    "?.z.?.?.}.}.}.?.?.?.r.=.=.}.=.?.}}.}.?.?.?.zM.?`?.}.}.}."
++		    "??.?.zM.?`?.}.}.}.?.?.?.r.=.?.}.=.?.?.}.?.?.?.}.=.?.?.}?"
++		    "?.}.}.?.?.?.z.?.?.}.}.}.?.?.?.r.=.=.}.=.?.}}.}.?.?.?.zM."
++		    "?`?.}.}.}.?.?.?.r.=.=.?.?`.?.?}.}.}.?.?.?.r.=.?.}.=.?.?."
++		    "}.?.?.?.}.=.?.?.}");
++    assert(s == NULL);
++
+     printf("%i\n", avahi_domain_equal("\\065aa bbb\\.\\046cc.cc\\\\.dee.fff.", "Aaa BBB\\.\\.cc.cc\\\\.dee.fff"));
+     printf("%i\n", avahi_domain_equal("A", "a"));
+ 
+diff --git a/avahi-common/domain.c b/avahi-common/domain.c
+index 3b1ab6834..e66d2416c 100644
+--- a/avahi-common/domain.c
++++ b/avahi-common/domain.c
+@@ -201,7 +201,7 @@ char *avahi_normalize_name(const char *s, char *ret_s, size_t size) {
+         }
+ 
+         if (!empty) {
+-            if (size < 1)
++            if (size < 2)
+                 return NULL;
+ 
+             *(r++) = '.';
diff --git a/avahi.changes b/avahi.changes
index add2575..60636c9 100644
--- a/avahi.changes
+++ b/avahi.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed Nov  1 06:19:44 UTC 2023 - Alynx Zhou <alynx.zhou@suse.com>
+
+- Add avahi-CVE-2023-38470.patch: Ensure each label is at least one
+  byte long (bsc#1215947, CVE-2023-38470).
+
 -------------------------------------------------------------------
 Thu Oct 26 08:33:36 UTC 2023 - Xiaoguang Wang <xiaoguang.wang@suse.com>
 
diff --git a/avahi.spec b/avahi.spec
index c14f00f..1501558 100644
--- a/avahi.spec
+++ b/avahi.spec
@@ -1,5 +1,5 @@
 #
-# spec file
+# spec file for package avahi
 #
 # Copyright (c) 2023 SUSE LLC
 #
@@ -103,6 +103,8 @@ Patch29:        harden_avahi-dnsconfd.service.patch
 Patch30:        avahi-CVE-2023-1981.patch
 # PATCH-FIX-UPSTREAM avahi-CVE-2023-38473.patch bsc#1216419 xwang@suse.com -- derive alternative host name from its unescaped version
 Patch31:        avahi-CVE-2023-38473.patch
+# PATCH-FIX-UPSTREAM avahi-CVE-2023-38470.patch bsc#1215947 alynx.zhou@suse.com -- Ensure each label is at least one byte long
+Patch32:        avahi-CVE-2023-38470.patch
 BuildRequires:  fdupes
 BuildRequires:  gcc-c++
 BuildRequires:  gdbm-devel
@@ -507,6 +509,7 @@ cp -a %{SOURCE12} service-type-database/build-db
 %patch29 -p1
 %patch30 -p1
 %patch31 -p1
+%patch32 -p1
 
 %if !%{build_core}
 # Replace all .la references from local .la files to installed versions