Full Disclosure mailing list archives
Re: Xfree86 video buffering?
From: "Eric Paynter" <eric () arcticbears com>
Date: Thu, 24 Feb 2005 14:35:27 -0800 (PST)
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 just before I clicked "K->Logout...->Reboot Computer" in KDE, the next morning when my Girlfriend turns my computer on she gets a quick 2 second shot of my porn just before the KDM login screen. What causes this? Can it be prevented? I can certainly see sensitive data potentially being leaked via this quirk.
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? -Eric -- arctic bears - email and dns services http://www.arcticbears.com _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
Current thread:
- Xfree86 video buffering? KF (lists) (Feb 23)
- Re: Xfree86 video buffering? defiance (Feb 23)
- Re: Xfree86 video buffering? KF (Lists) (Feb 23)
- Re: Xfree86 video buffering? Eric Paynter (Feb 24)
- Re: Xfree86 video buffering? Eric Windisch (Feb 24)
- Re: Xfree86 video buffering? Rodrigo Barbosa (Feb 24)
- Re: Xfree86 video buffering? KF (Lists) (Feb 24)
- Re: Xfree86 video buffering? Rodrigo Barbosa (Feb 24)
- Re: Xfree86 video buffering? Eric Windisch (Feb 24)
- Re: Xfree86 video buffering? defiance (Feb 23)
- Re: Xfree86 video buffering? KF (Lists) (Feb 24)
- Re: Xfree86 video buffering? Rodrigo Barbosa (Feb 24)
- Re: Xfree86 video buffering? Valdis . Kletnieks (Feb 24)
- RE: Xfree86 video buffering? Allan (Feb 25)
- Re: Xfree86 video buffering? James Tucker (Feb 25)
- Re: Xfree86 video buffering? Riad S. Wahby (Feb 25)