Use-after-free error in GNOME Display Manager - CVE-2018-14424
Published: August 14, 2018 / Updated: August 17, 2018
Vulnerability identifier: #VU14452
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-14424
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Gnome Development Team
Affected software:
GNOME Display Manager
GNOME Display Manager
Detailed vulnerability description
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists due to use-after-free error when unproper unexporting of display objects from its D-Bus interface when they are destroyed. A local attacker can use a specially crafted sequence of D-Bus method calls, trigger memory corruption and cause the service to crash or execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2018-14424
Install update from vendor's website.