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Date: Sat, 16 Jan 2021 08:39:46 +0100
From: Hanno Böck <>
Subject: MATE screensaver screen lock bypass with external monitor

Given the discussion about a cinnamon screensaver crash vuln, I was
recently made aware of this issue in mate-screensaver:

It seems by a series of plugging in and out external monitors with mate
screensaver you can see the screen content despite the screen being

Hanno Böck

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