CVE-2018-20681 Security feature bypass in n/a
Physically proximate attackers can bypass the MATE screensaver lock by power-cycling external displays, revealing screen content and potentially executing applications.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-20681?
CVE-2018-20681 is a medium-severity vulnerability in n/a, published on 9 Jan 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-200
Which versions are affected by CVE-2018-20681?
It affects 1 product.
Products include Mate-Desktop Mate-Screensaver.
How do I fix CVE-2018-20681?
Upgrade to a fixed version.
Is CVE-2018-20681 being exploited?
There is no known exploitation of CVE-2018-20681 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2018-20681, GHSA-wcwv-5qmw-xfpj, UBUNTU-CVE-2018-20681.