From: Meenali Gupta <[email protected]> A vulnerability was found in Avahi. A reachable assertion exists in the avahi_rdata_parse() function.
Signed-off-by: Meenali Gupta <[email protected]> --- meta/recipes-connectivity/avahi/avahi_0.8.bb | 1 + .../avahi/files/CVE-2023-38472.patch | 46 +++++++++++++++++++ 2 files changed, 47 insertions(+) create mode 100644 meta/recipes-connectivity/avahi/files/CVE-2023-38472.patch diff --git a/meta/recipes-connectivity/avahi/avahi_0.8.bb b/meta/recipes-connectivity/avahi/avahi_0.8.bb index 9c903d6868..84eb1c554d 100644 --- a/meta/recipes-connectivity/avahi/avahi_0.8.bb +++ b/meta/recipes-connectivity/avahi/avahi_0.8.bb @@ -29,6 +29,7 @@ SRC_URI = "${GITHUB_BASE_URI}/download/v${PV}/avahi-${PV}.tar.gz \ file://CVE-2023-38469.patch \ file://CVE-2023-38470.patch \ file://CVE-2023-38471.patch \ + file://CVE-2023-38472.patch \ " GITHUB_BASE_URI = "https://github.com/lathiat/avahi/releases/"; 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..a1de8e2a5a --- /dev/null +++ b/meta/recipes-connectivity/avahi/files/CVE-2023-38472.patch @@ -0,0 +1,46 @@ +From 8cf606779dc356768afc6b70e53f2808a9655143 Mon Sep 17 00:00:00 2001 +From: Michal Sekletar <[email protected]> +Date: Thu, 19 Oct 2023 17:36:44 +0200 +Subject: [PATCH] avahi: core: make sure there is rdata to process before + parsing it + +Fixes #452 + +Upstream-Status: Backport [https://github.com/lathiat/avahi/commit/b024ae5749f4aeba03478e6391687c3c9c8dee40] +CVE: CVE-2023-38472 + +Signed-off-by: Meenali Gupta <[email protected]> +--- + avahi-client/client-test.c | 3 +++ + avahi-daemon/dbus-entry-group.c | 2 +- + 2 files changed, 4 insertions(+), 1 deletion(-) + +diff --git a/avahi-client/client-test.c b/avahi-client/client-test.c +index 7d04a6a..57750a4 100644 +--- a/avahi-client/client-test.c ++++ b/avahi-client/client-test.c +@@ -258,6 +258,9 @@ int main (AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char *argv[]) { + printf("%s\n", avahi_strerror(avahi_entry_group_add_service (group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, "Lathiat's Site", "_http._tcp", NULL, NULL, 80, "foo=bar", NULL))); + printf("add_record: %d\n", avahi_entry_group_add_record (group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, "TestX", 0x01, 0x10, 120, "\5booya", 6)); + ++ 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"); +diff --git a/avahi-daemon/dbus-entry-group.c b/avahi-daemon/dbus-entry-group.c +index 4e879a5..aa23d4b 100644 +--- a/avahi-daemon/dbus-entry-group.c ++++ b/avahi-daemon/dbus-entry-group.c +@@ -340,7 +340,7 @@ DBusHandlerResult avahi_dbus_msg_entry_group_impl(DBusConnection *c, DBusMessage + 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); + } +-- +2.40.0 -- 2.40.0
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