Messages in this thread | | | Date | Thu, 30 Dec 1999 20:48:10 -0600 (CST) | From | Oliver Xymoron <> | Subject | Re: Unexecutable Stack / Buffer Overflow Exploits... |
| |
On Thu, 30 Dec 1999, Theodore Y. Ts'o wrote:
> In any case, I suspect that if something randomly added some random > value between 0 and 128k to the stack pointer at startup time, it would > also go a fairly long way towards thwarting overrun attacks --- but make > no mistake, it's still only papering over the problem.
I posted a kernel patch that did this a couple years back. And it's not really worth it. Assuming you can stick several kB on the stack, you can easily cut your guessing work factor by a lot.
-- "Love the dolphins," she advised him. "Write by W.A.S.T.E.."
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |