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Groups > linux.debian.security > #5068

Re: Userdata stays in RAM after Logout and Relogin

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On 04/11/2016 17:01, H. N. wrote:
> Hello,
>
> Sometimes it occurs, that the background Image of my desktop of is
> somehow corrupted. Yesterday I noteced, that after logout and re-login
> with another account on my pc the backgroundimage got corrupted again
> (which is annoying, but occurs very rearely).
> At the backgroundimage I could see lots of pixels in all colours, but
> also parts of logos and Images used im Programs (GeoGebra, Darktable) as
> well as 3 nearly complete frames of at least 3 Videos I watched on
> Debians Chromium on Youtube, Fragments of IntelliJ's IDEA-Logo, some
> writing (several times 'Google', as well as other words and once the
> Time-display at the top of the Desktop) and other logos.
>
>
> So if this was been a public PC another user could find out easyly, what
> I had done at the PC, possibly even Passwords and really sensitive
> information.
> If another User knew about this problem he might be able to find out a
> lot more than, just that by reading whats written in the RAM.
>
> I wonder that the RAM used by the user isn't cleared after logout.
>
> My System:
> Debian 8, Gnome Desktop currently used.
> No major system modifications done
>
>
> I MIGHT NOT BE IN SECURITY MAILING LIST (I DON'T KNOW, HAD A FEW
> PROBLEMS HERE), SO PLEASE SEND RESPONSE-EMAILS DIRECTLY TO
> deb_mailinglist@niemeczek.at TOO.
>
>
>
>
Ram or graphic ram ?
could be a bug in the video driver ?

hervé

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Re: Userdata stays in RAM after Logout and Relogin herve <herve@couvelard.com> - 2016-11-04 17:40 +0100
  RE: Userdata stays in RAM after Logout and Relogin "Radzykewycz, T (Radzy)" <radzy@windriver.com> - 2016-11-04 20:30 +0100
    Re: Userdata stays in RAM after Logout and Relogin Felix Knecht <debian@felixknecht.de> - 2016-11-04 23:40 +0100
    Re: Userdata stays in RAM after Logout and Relogin "H. N." <deb_mailinglist@niemeczek.at> - 2016-11-05 01:20 +0100
      Re: Userdata stays in RAM after Logout and Relogin Gunnar Wolf <gwolf@debian.org> - 2016-11-06 01:00 +0100
        Re: Userdata stays in RAM after Logout and Relogin "H. N." <deb_mailinglist@niemeczek.at> - 2016-11-06 10:40 +0100

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