nanog mailing list archives
Re: DARPA and the network
From: "Alexei Roudnev" <alex () relcom net>
Date: Tue, 6 Sep 2005 08:35:09 -0700
This in reality protects from EVERYTHING! In theory - not, but in reality - no exploits exists at all (except DDOS exploints, of course) for such systems. ----- Original Message ----- From: "Florian Weimer" <fw () deneb enyo de> To: <nanog () merit edu> Sent: Tuesday, September 06, 2005 2:43 AM Subject: Re: DARPA and the network
* Henning Brauer:so if the BSDs are en par with preventive measures, why is OpenBSD (to my knowledge) the only one shipping ProPolice, which prevented basically any buffer overflow seen in the wild for some time now? Why is OpenBSD the only one to have randomized library loading, rendering basicaly all exploits with fixed offsets unuseable? Why is OpenBSD the only one to have W^X, keeping memory pages writeable _or_ executable, but not both, unless an application fixes us to (by respective mprotect calls)?All these pamper over the real problems and are not very helpful in a service provider environment, where availability might well be more important than integrity. Buffer overflows still lead to crashes. Some of the countermeasures also break lots of legitimate applications (Lisp implementations, for example, or precompiled headers for GCC). (Isn't this quite off-topic for NANOG?)
Current thread:
- Re: DARPA and the network Henning Brauer (Sep 06)
- Re: DARPA and the network Florian Weimer (Sep 06)
- Re: DARPA and the network Henning Brauer (Sep 06)
- Re: DARPA and the network Michael . Dillon (Sep 06)
- Re: DARPA and the network Jay R. Ashworth (Sep 06)
- Re: DARPA and the network Paul Jakma (Sep 06)
- Re: DARPA and the network Henning Brauer (Sep 06)
- Re: DARPA and the network Alexei Roudnev (Sep 06)
- Re: DARPA and the network Florian Weimer (Sep 06)
- Re: DARPA and the network Valdis . Kletnieks (Sep 06)
- Re: DARPA and the network Henning Brauer (Sep 06)