1 files changed, 57 insertions, 0 deletions
diff --git a/poky/meta/recipes-connectivity/avahi/files/CVE-2023-38470-1.patch b/poky/meta/recipes-connectivity/avahi/files/CVE-2023-38470-1.patch
new file mode 100644
index 0000000000..4cca81698b
--- /dev/null
+++ b/poky/meta/recipes-connectivity/avahi/files/CVE-2023-38470-1.patch
@@ -0,0 +1,57 @@
+From 94cb6489114636940ac683515417990b55b5d66c 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.
+
+Upstream-Status: Backport [import from ubuntu https://git.launchpad.net/ubuntu/+source/avahi/tree/debian/patches/CVE-2023-38470-1.patch?h=ubuntu/jammy-security
+Upstream commit https://github.com/lathiat/avahi/commit/94cb6489114636940ac683515417990b55b5d66c]
+CVE: CVE-2023-38470
+Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
+---
+ avahi-common/domain-test.c | 14 ++++++++++++++
+ avahi-common/domain.c      |  2 +-
+ 2 files changed, 15 insertions(+), 1 deletion(-)
+
+Index: avahi-0.8/avahi-common/domain-test.c
+===================================================================
+--- avahi-0.8.orig/avahi-common/domain-test.c
++++ avahi-0.8/avahi-common/domain-test.c
+@@ -45,6 +45,20 @@ int main(AVAHI_GCC_UNUSED int argc, AVAH
+     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"));
+ 
+Index: avahi-0.8/avahi-common/domain.c
+===================================================================
+--- avahi-0.8.orig/avahi-common/domain.c
++++ avahi-0.8/avahi-common/domain.c
+@@ -201,7 +201,7 @@ char *avahi_normalize_name(const char *s
+         }
+ 
+         if (!empty) {
+-            if (size < 1)
++            if (size < 2)
+                 return NULL;
+ 
+             *(r++) = '.';