| Name | CVE-2018-14424 |
| Description | The daemon in GDM through 3.29.1 does not properly unexport display objects from its D-Bus interface when they are destroyed, which allows a local attacker to trigger a use-after-free via a specially crafted sequence of D-Bus method calls, resulting in a denial of service or potential code execution. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1494-1, DSA-4270-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| gdm3 (PTS) | jessie, jessie (lts) | 3.14.1-7+deb8u1 | fixed |
| stretch (security), stretch (lts), stretch | 3.22.3-3+deb9u3 | fixed | |
| buster | 3.30.2-3 | fixed | |
| bullseye | 3.38.2.1-1 | fixed | |
| bookworm | 43.0-3 | fixed | |
| sid, trixie | 47.0-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| gdm3 | source | wheezy | (unfixed) | end-of-life | ||
| gdm3 | source | jessie | 3.14.1-7+deb8u1 | DLA-1494-1 | ||
| gdm3 | source | stretch | 3.22.3-3+deb9u2 | DSA-4270-1 | ||
| gdm3 | source | (unstable) | 3.28.2-4 |
https://gitlab.gnome.org/GNOME/gdm/issues/401
https://gitlab.gnome.org/GNOME/gdm/commit/6060db704a19b0db68f2e9e6a2d020c0c78b6bba
https://gitlab.gnome.org/GNOME/gdm/commit/765b306c364885dd89d47fe9fe8618ce6a467bc1