From 3547329642fef7468548320131ab992517957e81 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Sat, 21 Dec 2013 03:52:39 +0100 Subject: [PATCH] bus: refuse messages pretending to originate from local interface --- src/libsystemd-bus/bus-message.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/libsystemd-bus/bus-message.c b/src/libsystemd-bus/bus-message.c index d6888738e..b0f4b16d4 100644 --- a/src/libsystemd-bus/bus-message.c +++ b/src/libsystemd-bus/bus-message.c @@ -5133,6 +5133,14 @@ int bus_message_parse_fields(sd_bus_message *m) { break; } + /* Refuse non-local messages that claim they are local */ + if (streq_ptr(m->path, "/org/freedesktop/DBus/Local")) + return -EBADMSG; + if (streq_ptr(m->interface, "org.freedesktop.DBus.Local")) + return -EBADMSG; + if (streq_ptr(m->sender, "org.freedesktop.DBus.Local")) + return -EBADMSG; + m->root_container.end = BUS_MESSAGE_BODY_SIZE(m); if (BUS_MESSAGE_IS_GVARIANT(m)) { -- 2.30.2