SB2020040191 - Red Hat Enterprise Linux 7 update for GNOME
Published: April 1, 2020
Security Bulletin ID
SB2020040191
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Security restrictions bypass (CVE-ID: CVE-2019-3820)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
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.
Remediation
Install update from vendor's website.