SB2019022814 - Arch Linux update for gdm
Published: February 28, 2019 Updated: April 27, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Security restrictions bypass (CVE-ID: CVE-2019-3820)
The vulnerability allows a physical attacker to bypass security restrictions on the system.
The vulnerability exists due to the lock screen feature does not properly restrict all contextual actions. A physical attacker can click on the password text field to bypass the lock screen and re-enable certain keyboard shortcuts, which the attacker can use to perform unauthorized actions on the system.
2) Security restrictions bypass (CVE-ID: CVE-2019-3825)
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.
Remediation
Install update from vendor's website.