Re: Potential security problem with mtr

On Fri, 3 Mar 2000, LaMont Jones wrote:

> > Since the saved uid survives across fork() and exec(), any buffer
> > overrun or similar bug in mtr is just as bad as if mtr had never done
> > the seteuid() at all.
>
> Saved-uid should get dropped on exec(), shouldn't it?
>

I stand corrected. Saved uid is set to the effective uid on
exec. Makes it harder to do nasty stuff with it.

/Viktor...

--| Viktor Fougstedt, system administrator at dtek.chalmers.se |--
--| http://www.dtek.chalmers.se/~viktor/ |--
--| ...soon we'll be sliding down the razor blade of life. /Tom Lehrer |--
Received on Mar 06 2000