CVE-2018-14424

HIGH

GNOME Display Manager < 3.29.1 - Use-After-Free via D-Bus Interface

Title source: llm
STIX 2.1

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.

References (5)

Core 5
Core References
Mailing List mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/09/msg00003.html
Third Party Advisory x_refsource_confirm
https://gitlab.gnome.org/GNOME/gdm/issues/401
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3737-1/
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2018/dsa-4270
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/105179

Scores

CVSS v3 7.8
EPSS 0.0005
EPSS Percentile 15.4%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (1)
gnome/gnome_display_manager < 3.29.1
Published Aug 14, 2018
Tracked Since Feb 18, 2026