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CVE-2018-14424

Published: 13 August 2018

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.

Priority

Medium

CVSS 3 base score: 7.8

Status

Package Release Status
gdm3
Launchpad, Ubuntu, Debian
Upstream
Released (3.29.91)
Ubuntu 21.10 (Impish Indri)
Released (3.29.91-1ubuntu1)
Ubuntu 21.04 (Hirsute Hippo)
Released (3.29.91-1ubuntu1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (3.29.91-1ubuntu1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (3.28.2-0ubuntu1.4)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(end of standard support, was needed)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist