1 files changed, 45 insertions, 0 deletions

diff --git a/meta/recipes-connectivity/avahi/files/CVE-2023-38472.patch b/meta/recipes-connectivity/avahi/files/CVE-2023-38472.patch
new file mode 100644
index 0000000000..f49d990a42
--- /dev/null
+++ b/meta/recipes-connectivity/avahi/files/CVE-2023-38472.patch
@@ -0,0 +1,45 @@
+From b024ae5749f4aeba03478e6391687c3c9c8dee40 Mon Sep 17 00:00:00 2001
+From: Michal Sekletar <msekleta@redhat.com>
+Date: Thu, 19 Oct 2023 17:36:44 +0200
+Subject: [PATCH] core: make sure there is rdata to process before parsing it
+
+Fixes #452
+
+CVE-2023-38472
+
+Upstream-Status: Backport [import from ubuntu https://git.launchpad.net/ubuntu/+source/avahi/tree/debian/patches/CVE-2023-38472.patch?h=ubuntu/focal-security
+Upstream commit https://github.com/lathiat/avahi/commit/b024ae5749f4aeba03478e6391687c3c9c8dee40]
+CVE: CVE-2023-38472
+Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
+---
+ avahi-client/client-test.c      | 3 +++
+ avahi-daemon/dbus-entry-group.c | 2 +-
+ 2 files changed, 4 insertions(+), 1 deletion(-)
+
+Index: avahi-0.7/avahi-client/client-test.c
+===================================================================
+--- avahi-0.7.orig/avahi-client/client-test.c
++++ avahi-0.7/avahi-client/client-test.c
+@@ -272,6 +272,9 @@ int main (AVAHI_GCC_UNUSED int argc, AVA
+     assert(error == AVAHI_ERR_INVALID_RECORD);
+     avahi_string_list_free(txt);
+ 
++    error = avahi_entry_group_add_record (group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, "TestX", 0x01, 0x10, 120, "", 0);
++    assert(error != AVAHI_OK);
++
+     avahi_entry_group_commit (group);
+ 
+     domain = avahi_domain_browser_new (avahi, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, NULL, AVAHI_DOMAIN_BROWSER_BROWSE, 0, avahi_domain_browser_callback, (char*) "omghai3u");
+Index: avahi-0.7/avahi-daemon/dbus-entry-group.c
+===================================================================
+--- avahi-0.7.orig/avahi-daemon/dbus-entry-group.c
++++ avahi-0.7/avahi-daemon/dbus-entry-group.c
+@@ -340,7 +340,7 @@ DBusHandlerResult avahi_dbus_msg_entry_g
+         if (!(r = avahi_record_new_full (name, clazz, type, ttl)))
+             return avahi_dbus_respond_error(c, m, AVAHI_ERR_NO_MEMORY, NULL);
+ 
+-        if (avahi_rdata_parse (r, rdata, size) < 0) {
++        if (!rdata || avahi_rdata_parse (r, rdata, size) < 0) {
+             avahi_record_unref (r);
+             return avahi_dbus_respond_error(c, m, AVAHI_ERR_INVALID_RDATA, NULL);
+         }