Am 09.05.2011 10:01, schrieb Vincent Zweije: > On Mon, May 09, 2011 at 08:57:24AM +0200, Patrick Matth?i wrote: > > || Am 08.05.2011 23:58, schrieb Vincent Zweije: > || >On Sun, May 08, 2011 at 11:51:40PM +0200, Vincent Zweije wrote: > || > > || >|| Looking at /etc/ati/authatieventsd.sh, this piece of code is wrong: > || > > || >||> revoke) > || >||> if [ `pinky -fs | awk '{ if ($3 == "'$2'" || $(NF) == > "'$2'" ) { print $1; exit; } }'` ]; then > || >||> user=`pinky -fs | awk '{ if ($3 == "'$2'" || $(NF) == > "'$2'" ) { print $1; exit; } }'` > || >||> su $user -c "xauth -f $3 remove $2" || exit -1 > || >||> else > || >||> xauth -f $3 remove $2 || exit -1 > || >|| > || >|| And strictly speaking, the same twice here, but the secret is being > || >|| removed so exploiting its knowledge would be very hard though not > || >|| theoretically impossible. Anyway, if your fixing the grant case, do > the > || >|| revoke case at the same time so they use the same method. It's just > good > || >|| software engineering. > || > > || >I think I had my eyes crossed here. No secret cookie is being mentioned, > || >only the display name which is not secret. > || Do you want to say, that the security part of this bug could be closed? > > Sorry, no, only that the "revoke" part has no security problem. The > "grant" part still does. > > || Sorry yes I mean 11-4, not 10-4 :) > > Right. Well, if the offending code is gone in 11-4 that would be the > end of the problem, but even without checking I suspect it's still there. > > Ciao. Vincent.
It looks like those issue were introduced by Debian years ago with the patch 03-authatieventsd.sh.diff and I can't say for what it is realy there (it already was available @ fglrx, where I was not the maintainer). Could you please deapply it and look if everything is right? -- /* Mit freundlichem Gruß / With kind regards, Patrick Matthäi GNU/Linux Debian Developer E-Mail: pmatth...@debian.org patr...@linux-dev.org Comment: Always if we think we are right, we were maybe wrong. */
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