USN-4134-1 fixed a vulnerability in IBus. The update caused a regression in some Qt applications and the fix was subsequently reverted in USN-4134-2. The regression has since been resolved and so this update fixes the original vulnerability.
We apologize for the inconvenience.
Original advisory details:
Simon McVittie discovered that IBus did not enforce appropriate access controls on its private D-Bus socket. A local unprivileged user who discovers the IBus socket address of another user could exploit this to capture the key strokes of the other user.
{ "availability": "No subscription required", "binaries": [ { "binary_name": "gir1.2-ibus-1.0", "binary_version": "1.5.11-1ubuntu2.4" }, { "binary_name": "gir1.2-ibus-1.0-dbgsym", "binary_version": "1.5.11-1ubuntu2.4" }, { "binary_name": "ibus", "binary_version": "1.5.11-1ubuntu2.4" }, { "binary_name": "ibus-dbg", "binary_version": "1.5.11-1ubuntu2.4" }, { "binary_name": "ibus-dbgsym", "binary_version": "1.5.11-1ubuntu2.4" }, { "binary_name": "ibus-doc", "binary_version": "1.5.11-1ubuntu2.4" }, { "binary_name": "ibus-gtk", "binary_version": "1.5.11-1ubuntu2.4" }, { "binary_name": "ibus-gtk-dbgsym", "binary_version": "1.5.11-1ubuntu2.4" }, { "binary_name": "ibus-gtk3", "binary_version": "1.5.11-1ubuntu2.4" }, { "binary_name": "ibus-gtk3-dbgsym", "binary_version": "1.5.11-1ubuntu2.4" }, { "binary_name": "ibus-wayland", "binary_version": "1.5.11-1ubuntu2.4" }, { "binary_name": "ibus-wayland-dbgsym", "binary_version": "1.5.11-1ubuntu2.4" }, { "binary_name": "libibus-1.0-5", "binary_version": "1.5.11-1ubuntu2.4" }, { "binary_name": "libibus-1.0-5-dbgsym", "binary_version": "1.5.11-1ubuntu2.4" }, { "binary_name": "libibus-1.0-dev", "binary_version": "1.5.11-1ubuntu2.4" }, { "binary_name": "libibus-1.0-dev-dbgsym", "binary_version": "1.5.11-1ubuntu2.4" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "gir1.2-ibus-1.0", "binary_version": "1.5.17-3ubuntu5.3" }, { "binary_name": "ibus", "binary_version": "1.5.17-3ubuntu5.3" }, { "binary_name": "ibus-dbgsym", "binary_version": "1.5.17-3ubuntu5.3" }, { "binary_name": "ibus-doc", "binary_version": "1.5.17-3ubuntu5.3" }, { "binary_name": "ibus-gtk", "binary_version": "1.5.17-3ubuntu5.3" }, { "binary_name": "ibus-gtk-dbgsym", "binary_version": "1.5.17-3ubuntu5.3" }, { "binary_name": "ibus-gtk3", "binary_version": "1.5.17-3ubuntu5.3" }, { "binary_name": "ibus-gtk3-dbgsym", "binary_version": "1.5.17-3ubuntu5.3" }, { "binary_name": "ibus-wayland", "binary_version": "1.5.17-3ubuntu5.3" }, { "binary_name": "ibus-wayland-dbgsym", "binary_version": "1.5.17-3ubuntu5.3" }, { "binary_name": "libibus-1.0-5", "binary_version": "1.5.17-3ubuntu5.3" }, { "binary_name": "libibus-1.0-5-dbgsym", "binary_version": "1.5.17-3ubuntu5.3" }, { "binary_name": "libibus-1.0-dev", "binary_version": "1.5.17-3ubuntu5.3" } ] }