Security restrictions bypass in GNOME Display Manager - CVE-2019-3825

 

Security restrictions bypass in GNOME Display Manager - CVE-2019-3825

Published: February 14, 2019


Vulnerability identifier: #VU17666
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-3825
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Gnome Development Team
Affected software:
GNOME Display Manager

Detailed vulnerability description

The vulnerability allows a physical attacker to bypass security restrictions on the system.

The vulnerability exists due to improper security restrictions imposed by the affected software when timed login is enabled. A local attacker with physical access can select the timed login user and wait for the timer to expire that allows to bypass security restrictions and gain access to the logged-in user’s session on the targeted system.


How to mitigate CVE-2019-3825

Update to version 3.31.4.

Sources