Information disclosure in mate-screensaver - CVE-2018-20681
Published: January 10, 2019 / Updated: July 17, 2020
Vulnerability identifier: #VU31170
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2018-20681
CWE-ID: CWE-200
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
mate-screensaver
mate-screensaver
Software vendor:
MATE Desktop
MATE Desktop
Description
The vulnerability allows a local non-authenticated attacker to read and manipulate data.
mate-screensaver before 1.20.2 in MATE Desktop Environment allows physically proximate attackers to view screen content and possibly control applications. By unplugging and re-plugging or power-cycling external output devices (such as additionally attached graphical outputs via HDMI, VGA, DVI, etc.) the content of a screensaver-locked session can be revealed. In some scenarios, the attacker can execute applications, such as by clicking with a mouse.
Remediation
Install update from vendor's website.