Le Mercredi 23 Février 2005 23:20, defiance a écrit :
Seriously though, I think this has to do with stuff getting left in the
video memory. I don't think X flushes it properly.
I already saw this problem switching from ctrl+alt+F7 to ctrl+alt+F8 from a
F7 root X session to a F8 user X
On Sun, 27 Feb 2005 01:19:34 +0100, William Waisse said:
I already saw this problem switching from ctrl+alt+F7 to ctrl+alt+F8 from a
F7 root X session to a F8 user X session, wher the user session sees the last
root screen.
Umm... what's stopping the user from looking at the F7 root session
KF (lists) wrote:
Recently I have noticed that after shutting down my machine or rebooting
my X-windows will briefly flash an image of whatever I was doing when I
rebooted the machine or logged out.
i've had a similiar issue with a 3dfx banshee videocard and some
(beta)driver under win2k (or
this might not amount to anything, but do you share some of your ram
with your video card? if you do, maybe changing the refresh latency
and using the shadow ram options could result in something good.
regards
Ankush Kapoor
On Sat, 26 Feb 2005 21:17:43 +0100, _evil [EMAIL PROTECTED] wrote:
KF
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
oh, i forgot:
On Sat, 26 Feb 2005 21:17:43 +0100, _evil [EMAIL PROTECTED] wrote:
i've had a similiar issue with a 3dfx banshee videocard and some
(beta)driver under win2k (or win98?). this card had 16MB video-ram
-
As a follow up I have had some interaction with the Xorg folks and one
gentleman has mentioned the following:
(they will) ... look into why the current method isn't very effective
with the vesa driver and go from there.
also
Enabling the VESA 'clear memory' feature when programming the initial
So the RAM should be flushed during shutdown ..
(as early in the shutdown procedure as possible, I'd say).
Trying to do this during the boot sequence is useless. You could make a
special 'bootdisk' that would show you the contents of the videoram. This
would also make it available for longer then
On Thu, 24 Feb 2005 23:26:36 -0500, [EMAIL PROTECTED]
[EMAIL PROTECTED] wrote:
I don't think this is at all easily solvable - when the X server starts up,
the
card is probably in console mode using the VGA emulation, which is pretty
brain-dead and doesn't touch much of the card memory (when
All kidding aside, this seems to be a real security issue. Your system
shouldn't be showing unauthorized users what you were doing. It should
properly flush the memory.
Seems like an easy fix would be to write a routine into KDM to write 4-5
seconds worth of something benign (like the KDE logo
[EMAIL PROTECTED] wrote:
I don't think this is at all easily solvable - when the X server starts up, the
card is probably in console mode using the VGA emulation, which is pretty
brain-dead and doesn't touch much of the card memory (when you have 32M or 64M
on-card, that 640x480 gets lonely
-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Stan
Bubrouski
Sent: 25 February 2005 16:10
To: Michael Holstein
Cc: full-disclosure@lists.netsys.com
Subject: Re: [Full-Disclosure] Xfree86 video buffering?
Michael Holstein wrote:
Seems like an easy fix would be to write a routine
Michael Holstein wrote:
Seems like an easy fix would be to write a routine into KDM to write
4-5 seconds worth of something benign (like the KDE logo in different
spots) to the screen before logout/shutdown (note how 2000/XP already
do this with the 'preparing to shutdown' screen? Maybe there's
Stan Bubrouski wrote:
Michael Holstein wrote:
Seems like an easy fix would be to write a routine into KDM to write
4-5 seconds worth of something benign (like the KDE logo in different
spots) to the screen before logout/shutdown (note how 2000/XP already
do this with the 'preparing to shutdown'
-disclosure@lists.netsys.com
Subject: Re: [Full-Disclosure] Xfree86 video buffering?
Michael Holstein wrote:
Seems like an easy fix would be to write a routine into KDM to write
4-5 seconds worth of something benign (like the KDE logo in different
spots) to the screen before logout/shutdown (note
bkfsec wrote:
Stan Bubrouski wrote:
That seems like a pretty unhelpful solution. Say the system
crashes? Or KDE or
X crash? The same problem will still exist.
With this solution someone could intentionally crash your machine to
avoid those
routines from running. I'm not trying to put you
On Wed, February 23, 2005 1:08 pm, KF (lists) said:
Recently I have noticed that after shutting down my machine or rebooting
my X-windows will briefly flash an image of whatever I was doing when I
rebooted the machine or logged out.
As an example if I was browsing porn at night in mozilla
On Thu, 2005-02-24 at 14:35 -0800, Eric Paynter wrote:
On Wed, February 23, 2005 1:08 pm, KF (lists) said:
Recently I have noticed that after shutting down my machine or rebooting
my X-windows will briefly flash an image of whatever I was doing when I
rebooted the machine or logged out.
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On Thu, Feb 24, 2005 at 06:35:00PM -0500, Eric Windisch wrote:
On Thu, 2005-02-24 at 14:35 -0800, Eric Paynter wrote:
On Wed, February 23, 2005 1:08 pm, KF (lists) said:
Recently I have noticed that after shutting down my machine or rebooting
All kidding aside, this seems to be a real security issue. Your system
shouldn't be showing unauthorized users what you were doing. It should
properly flush the memory.
I do have a movie clip showing a session where root was viewing the
/etc/shadow file. The shadow is displayed on the screen for
That is a definate common thread on my end.
All three of the machines in quesion have the following in the X config.
Driver vesa
-KF
Rodrigo Barbosa wrote:
Looks like related to the VESA buffer, since I only saw it happen when
using the VESA driver.
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On Thu, Feb 24, 2005 at 08:23:28PM -0500, KF (Lists) wrote:
Does a power off flush it?
I have power cycled at least one of the machines and let it sit for
several minutes. Also as I stated before sometimes when I get up in the
morning I catch
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
You might try contacting Paulo Cezar, the original author of the
driver.
Last time I talked to him, his e-mail was [EMAIL PROTECTED]
Not sure if he is still working there, tho.
He might be able to shred some light on this issue.
[]s
On Thu, Feb
On Thu, 24 Feb 2005 14:35:27 PST, Eric Paynter said:
All kidding aside, this seems to be a real security issue. Your system
shouldn't be showing unauthorized users what you were doing. It should
properly flush the memory.
Does a power off flush it?
I've seen this behavior on a Dell
Recently I have noticed that after shutting down my machine or rebooting
my X-windows will briefly flash an image of whatever I was doing when I
rebooted the machine or logged out.
As an example if I was browsing porn at night in mozilla just before I
clicked K-Logout...-Reboot Computer in
I would do a quick visit to slashdot after your nighly porn session. Then
she'll never know :)
Seriously though, I think this has to do with stuff getting left in the video
memory. I don't think X flushes it properly. Or I could have no idea what I'm
talking about.
-defiance
defiance wrote:
I would do a quick visit to slashdot after your nighly porn session. Then
she'll never know :)
Hahah yeah I am waiting for her to google for my name one day and see
this post. It was really just a silly example off the top of my head. =]
Seriously though, I think this has to do
26 matches
Mail list logo
