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Date: Wed, 18 Jan 2012 20:53:40 -0500
From: Michael Gilbert <michael.s.gilbert@...il.com>
To: oss-security@...ts.openwall.com
Subject: Re: Screen locking programs on Xorg 1.11
On Wed, Jan 18, 2012 at 7:03 PM, Gu1 wrote:
> Hi,
> I recently found out that it is possible to kill a screensaver/screen
> locker program on the latest version of Xorg (1.11 shipped with
> archlinux, debian wheezy..) using the Ctrl+Alt+Multiply key binding.
>
> This behavior seems to have been introduced in a recent commit[1] and i
> couldn't find a way to disable it.
>
> All screen locking programs i tested (gnome-screensaver, kscreenlocker,
> slock, slimlock...), are basically rendered useless.
>
> Not sure if this is a bug or a feature... :)
All I can say is wow. A key combo/code that reproducibly kills all
screen lockers is definitely *not* a feature. This demonstrates the
importance of code review in critical code. Nice find.
Best wishes,
Mike
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