CVE-2018-14424

Publication date 13 August 2018

Last updated 18 August 2025

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
gdm3	25.10 questing	Fixed 3.29.91-1ubuntu1
	25.04 plucky	Fixed 3.29.91-1ubuntu1
	24.10 oracular	Fixed 3.29.91-1ubuntu1
	24.04 LTS noble	Fixed 3.29.91-1ubuntu1
	23.10 mantic	Fixed 3.29.91-1ubuntu1
	23.04 lunar	Fixed 3.29.91-1ubuntu1
	22.10 kinetic	Fixed 3.29.91-1ubuntu1
	22.04 LTS jammy	Fixed 3.29.91-1ubuntu1
	21.10 impish	Fixed 3.29.91-1ubuntu1
	21.04 hirsute	Fixed 3.29.91-1ubuntu1
	20.10 groovy	Fixed 3.29.91-1ubuntu1
	20.04 LTS focal	Fixed 3.29.91-1ubuntu1
	19.10 eoan	Fixed 3.29.91-1ubuntu1
	19.04 disco	Fixed 3.29.91-1ubuntu1
	18.10 cosmic	Fixed 3.29.91-1ubuntu1
	18.04 LTS bionic	Fixed 3.28.2-0ubuntu1.4
	16.04 LTS xenial	Vulnerable
	14.04 LTS trusty	Not in release

Severity score breakdown

Parameter	Value
Base score	7.8 · High
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2018-14424

Cvss 3 Severity Score

Description

Status

Severity score breakdown

References

Related Ubuntu Security Notices (USN)

Other references