Date: Sat, 16 Jan 2021 08:39:46 +0100 From: Hanno Böck <hanno@...eck.de> To: oss-security@...ts.openwall.com 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: https://github.com/mate-desktop/mate-screensaver/issues/183 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 locked. -- Hanno Böck https://hboeck.de/
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