On Wednesday 19 December 2007 23:57:29 Tollef Fog Heen wrote:
> Why do you believe this is a security hole?

Quotation from the Xwrapper.conf man page (man 5 Xwrapper.config)
<<Since the  X server requires superuser privileges, it may be unwise to 
permit just any user on the system to execute it.  Even if the X server is 
not exploitable  in the sense of permitting ordinary users to gain elevated 
privileges, a poorly-written or insufficiently-tested  hardware  driver for  
the  X  server  may  cause  bus  lockups and freeze the system, an unpleasant 
experience for anyone using it at the time.>>

So, it means that anybody, including a process without console, can start the 
X server. The target for UME is mobile devices, which usually should have 
MORE SECURITY in place than normal computers. This is why the big 
manufacturers like Nokia are obsessed with security of their terminal 
solutions, and linux didn't penetrate too much yet.

I really don't understand why are you opposing my solution? It is more elegant 
and it doesn't break the debian/xorg "default rules". Do you have any 
arguments against my proposed fix?

Cheers,
Peter
-- 
 Peter Antoniac, PhD
 https://launchpad.net/~theseinfeld
 GIT/CS a C+++ UL+++$ w--- PGP++ e++++

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