CVE-2018-14424 Information

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.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.securityfocus.com/bid/105179 https://gitlab.gnome.org/GNOME/gdm/issues/401 https://lists.debian.org/debian-lts-announce/2018/09/msg00003.html https://usn.ubuntu.com/3737-1/ https://www.debian.org/security/2018/dsa-4270

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8