[GLLUG] Does anyone use Linux capabilities ?

Richard W.M. Jones rich at annexia.org
Fri Nov 14 09:17:07 UTC 2014


On Tue, Oct 28, 2014 at 04:47:13PM +0000, Alain Williams wrote:
> Just wondering ... these have been in the kernel for getting on to 20 years. One
> of those things on my 'must get round to learning & using' list.
> 
> Do any of you use them ? If so, what for ?
> 
> If you do not know what I am talking about go:
> 
>     man capabilities
> 
>     man capsh

They have no particular theoretical basis, so I doubt using
capabilities makes you much more secure.  See for example:

  https://lwn.net/Articles/486306/

and this:

  https://forums.grsecurity.net/viewtopic.php?f=7&t=2522&sid=c6fbcf62fd5d3472562540a7e608ce4e#p10271

Rich.

-- 
Richard Jones
Red Hat




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