1 files changed, 52 insertions, 0 deletions

diff --git a/meta/recipes-connectivity/avahi/files/CVE-2023-38471-2.patch b/meta/recipes-connectivity/avahi/files/CVE-2023-38471-2.patch
new file mode 100644
index 0000000000..44737bfc2e
--- /dev/null
+++ b/meta/recipes-connectivity/avahi/files/CVE-2023-38471-2.patch
@@ -0,0 +1,52 @@
+From b675f70739f404342f7f78635d6e2dcd85a13460 Mon Sep 17 00:00:00 2001
+From: Evgeny Vereshchagin <evvers@ya.ru>
+Date: Tue, 24 Oct 2023 22:04:51 +0000
+Subject: [PATCH] core: return errors from avahi_server_set_host_name properly
+
+It's a follow-up to 894f085f402e023a98cbb6f5a3d117bd88d93b09
+
+Upstream-Status: Backport [import from ubuntu https://git.launchpad.net/ubuntu/+source/avahi/tree/debian/patches/CVE-2023-38471-2.patch?h=ubuntu/jammy-security
+Upstream commit https://github.com/lathiat/avahi/commit/b675f70739f404342f7f78635d6e2dcd85a13460]
+CVE: CVE-2023-38471 #Follow-up Patch
+Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
+---
+ avahi-core/server.c | 9 ++++++---
+ 1 file changed, 6 insertions(+), 3 deletions(-)
+
+Index: avahi-0.8/avahi-core/server.c
+===================================================================
+--- avahi-0.8.orig/avahi-core/server.c
++++ avahi-0.8/avahi-core/server.c
+@@ -1309,10 +1309,13 @@ int avahi_server_set_host_name(AvahiServ
+     else
+         hn = avahi_normalize_name_strdup(host_name);
+ 
++    if (!hn)
++        return avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
++
+     h = hn;
+     if (!avahi_unescape_label((const char **)&hn, label, sizeof(label))) {
+         avahi_free(h);
+-        return AVAHI_ERR_INVALID_HOST_NAME;
++        return avahi_server_set_errno(s, AVAHI_ERR_INVALID_HOST_NAME);
+     }
+ 
+     avahi_free(h);
+@@ -1320,7 +1323,7 @@ int avahi_server_set_host_name(AvahiServ
+     h = label_escaped;
+     len = sizeof(label_escaped);
+     if (!avahi_escape_label(label, strlen(label), &h, &len))
+-        return AVAHI_ERR_INVALID_HOST_NAME;
++        return avahi_server_set_errno(s, AVAHI_ERR_INVALID_HOST_NAME);
+ 
+     if (avahi_domain_equal(s->host_name, label_escaped) && s->state != AVAHI_SERVER_COLLISION)
+         return avahi_server_set_errno(s, AVAHI_ERR_NO_CHANGE);
+@@ -1330,7 +1333,7 @@ int avahi_server_set_host_name(AvahiServ
+     avahi_free(s->host_name);
+     s->host_name = avahi_strdup(label_escaped);
+     if (!s->host_name)
+-        return AVAHI_ERR_NO_MEMORY;
++        return avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
+ 
+     update_fqdn(s);
+