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Bug#656494: marked as done ([xserver-xorg-core] All screen-lockers broken by a keypress (Ctrl+Alt+* (keypad)))

Your message dated Thu, 19 Jan 2012 18:32:53 +0100
with message-id <20120119173253.GB25330@mraw.org>
and subject line Re: Bug#656494: [xserver-xorg-core] All screen-lockers broken by a keypress (Ctrl+Alt+* (keypad))
has caused the Debian Bug report #656494,
regarding [xserver-xorg-core] All screen-lockers broken by a keypress (Ctrl+Alt+* (keypad))
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
656494: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=656494
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: xserver-xorg-core
Version: 2:1.11.3.901-1
Severity: critical
Tags: security
X-Debbugs-CC: secure-testing-team@lists.alioth.debian.org

It is possible to kill every screensaver/screen locker program
(gnome-screensaver, kscreenlocker, slock, slimlock...) on the latest
version of Xorg (1.11) using the Ctrl+Alt+Multiply key binding. It
didn't work for multiply from shift+plus (Spanish keyboard layout) but
the keypad's plus (involving Num lock) did bypass the password dialog.
I have tested it with kscreenlocker.

This behavior seems to have been introduced in a recent commit in Xorg upstream:
http://cgit.freedesktop.org/xorg/xserver/commit/?id=7d2543a3cb3089241982ce4f8984fd723d5312a1

(source: http://seclists.org/oss-sec/2012/q1/191)


--- System information. ---
Architecture: i386
Kernel: Linux 3.1.0-1-686-pae

Debian Release: wheezy/sid
500 unstable www.debian-multimedia.org
500 unstable http.us.debian.org
500 stable security.debian.org

--- Package information. ---
Depends (Version) | Installed
==============================================-+-====================
xserver-common (>= 2:1.11.3.901-1) | 2:1.11.3.901-1
keyboard-configuration | 1.75
udev (>= 149) | 175-3
libaudit0 (>= 1.7.13) | 1.7.18-1
libc6 (>= 2.8) | 2.13-24
libdrm2 (>= 2.3.1) | 2.4.30-1
libgcrypt11 (>= 1.4.5) | 1.5.0-3
libpciaccess0 (>= 0.10.7) | 0.12.902-1
libpixman-1-0 (>= 0.21.6) | 0.24.0-1
libselinux1 (>= 2.0.82) | 2.1.0-4
libudev0 (>= 146) | 175-3
libxau6 | 1:1.0.6-4
libxdmcp6 | 1:1.1.0-4
libxfont1 (>= 1:1.4.2) | 1:1.4.4-1


Recommends (Version) | Installed
=================================-+-==============
libgl1-mesa-dri (>= 7.10.2-4) | 7.11.2-1


Suggests (Version) | Installed
==============================-+-===========
xfonts-100dpi | 1:1.0.3
OR xfonts-75dpi | 1:1.0.3
xfonts-scalable | 1:1.0.3-1

--- End Message ---
--- Begin Message --- 
Hi Mario.

Mario Palomo <mariopal@gmail.com> (19/01/2012):
> It is possible to kill every screensaver/screen locker program
> (gnome-screensaver, kscreenlocker, slock, slimlock...) on the latest
> version of Xorg (1.11) using the Ctrl+Alt+Multiply key binding. It
> didn't work for multiply from shift+plus (Spanish keyboard layout) but
> the keypad's plus (involving Num lock) did bypass the password dialog.
> I have tested it with kscreenlocker.

Fixed already: #656429

> This behavior seems to have been introduced in a recent commit in Xorg
> upstream:
> http://cgit.freedesktop.org/xorg/xserver/commit/?id=7d2543a3cb3089241982ce4f8984fd723d5312a1

(FSVO “recent”…)

Mraw,
KiBi.

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