91 lines
3.9 KiB
Diff
91 lines
3.9 KiB
Diff
From d7c91ea7a5574e8d068b50c85350ee47c1ec5117 Mon Sep 17 00:00:00 2001
|
||
From: Simon McVittie <smcv@debian.org>
|
||
Date: Wed, 8 May 2024 10:09:40 +0100
|
||
Subject: [PATCH 1/2] gdbusconnection: Allow name owners to have the syntax of
|
||
a well-known name
|
||
|
||
In a D-Bus-Specification-compliant message bus, the owner of a well-known
|
||
name is a unique name. However, ibus has its own small implementation
|
||
of a message bus (src/ibusbus.c) in which org.freedesktop.IBus is
|
||
special-cased to also have itself as its owner (like org.freedesktop.DBus
|
||
on a standard message bus), and connects to that bus with the
|
||
G_DBUS_CONNECTION_FLAGS_MESSAGE_BUS_CONNECTION flag. The ability to do
|
||
this regressed when CVE-2024-34397 was fixed.
|
||
|
||
Relax the checks to allow the owner of a well-known name to be any valid
|
||
D-Bus name, even if it is not syntactically a unique name.
|
||
|
||
Fixes: 683b14b9 "gdbus: Track name owners for signal subscriptions"
|
||
Resolves: https://gitlab.gnome.org/GNOME/glib/-/issues/3353
|
||
Bug-Debian: https://bugs.debian.org/1070730
|
||
Bug-Debian: https://bugs.debian.org/1070736
|
||
Bug-Debian: https://bugs.debian.org/1070743
|
||
Bug-Debian: https://bugs.debian.org/1070745
|
||
Signed-off-by: Simon McVittie <smcv@debian.org>
|
||
---
|
||
gio/gdbusconnection.c | 4 ++--
|
||
1 file changed, 2 insertions(+), 2 deletions(-)
|
||
|
||
diff --git a/gio/gdbusconnection.c b/gio/gdbusconnection.c
|
||
index ee994cecc5..fcbdffa23f 100644
|
||
--- a/gio/gdbusconnection.c
|
||
+++ b/gio/gdbusconnection.c
|
||
@@ -2380,7 +2380,7 @@ name_watcher_deliver_name_owner_changed_unlocked (SignalData *name_watcher,
|
||
/* Our caller already checked this */
|
||
g_assert (g_strcmp0 (name_watcher->arg0, name) == 0);
|
||
|
||
- if (G_LIKELY (new_owner[0] == '\0' || g_dbus_is_unique_name (new_owner)))
|
||
+ if (G_LIKELY (new_owner[0] == '\0' || g_dbus_is_name (new_owner)))
|
||
name_watcher_set_name_owner_unlocked (name_watcher, new_owner);
|
||
else
|
||
g_warning ("Received NameOwnerChanged signal with invalid owner \"%s\" for \"%s\"",
|
||
@@ -2432,7 +2432,7 @@ name_watcher_deliver_get_name_owner_reply_unlocked (SignalData *name_watcher,
|
||
|
||
g_variant_get (body, "(&s)", &new_owner);
|
||
|
||
- if (G_LIKELY (g_dbus_is_unique_name (new_owner)))
|
||
+ if (G_LIKELY (g_dbus_is_name (new_owner)))
|
||
name_watcher_set_name_owner_unlocked (name_watcher, new_owner);
|
||
else
|
||
g_warning ("Received GetNameOwner reply with invalid owner \"%s\" for \"%s\"",
|
||
--
|
||
GitLab
|
||
|
||
|
||
From dd3b2f8a5fb7397dc68d89ee48d60993eda36c43 Mon Sep 17 00:00:00 2001
|
||
From: Philip Withnall <philip@tecnocode.co.uk>
|
||
Date: Wed, 8 May 2024 14:31:12 +0000
|
||
Subject: [PATCH 2/2] Apply 2 suggestion(s) to 1 file(s)
|
||
|
||
---
|
||
gio/gdbusconnection.c | 6 ++++++
|
||
1 file changed, 6 insertions(+)
|
||
|
||
diff --git a/gio/gdbusconnection.c b/gio/gdbusconnection.c
|
||
index fcbdffa23f..72e58fd77d 100644
|
||
--- a/gio/gdbusconnection.c
|
||
+++ b/gio/gdbusconnection.c
|
||
@@ -2380,6 +2380,9 @@ name_watcher_deliver_name_owner_changed_unlocked (SignalData *name_watcher,
|
||
/* Our caller already checked this */
|
||
g_assert (g_strcmp0 (name_watcher->arg0, name) == 0);
|
||
|
||
+ /* FIXME: This should be validating that `new_owner` is a unique name,
|
||
+ * but IBus’ implementation of a message bus is not compliant with the spec.
|
||
+ * See https://gitlab.gnome.org/GNOME/glib/-/issues/3353 */
|
||
if (G_LIKELY (new_owner[0] == '\0' || g_dbus_is_name (new_owner)))
|
||
name_watcher_set_name_owner_unlocked (name_watcher, new_owner);
|
||
else
|
||
@@ -2432,6 +2435,9 @@ name_watcher_deliver_get_name_owner_reply_unlocked (SignalData *name_watcher,
|
||
|
||
g_variant_get (body, "(&s)", &new_owner);
|
||
|
||
+ /* FIXME: This should be validating that `new_owner` is a unique name,
|
||
+ * but IBus’ implementation of a message bus is not compliant with the spec.
|
||
+ * See https://gitlab.gnome.org/GNOME/glib/-/issues/3353 */
|
||
if (G_LIKELY (g_dbus_is_name (new_owner)))
|
||
name_watcher_set_name_owner_unlocked (name_watcher, new_owner);
|
||
else
|
||
--
|
||
GitLab
|
||
|