right, but we're talking about unmanaged vs managed, and the earlier poster (i think it might've been "pavel" [sorry if it wasn't]), said that 100% java is still vulnerable to buffer overflows. the fact is that it isn't.
-- Michael On 3/29/06, Andrew van der Stock <[EMAIL PROTECTED]> wrote: > I'm not talking arbitrary code execution, I'm talking about odd code > paths, bizarre outcomes, and DoS. > > For example (found via 19 Sins, Viega, Howard and LeBlanc): > http://seclists.org/lists/bugtraq/2004/Nov/0097.html > > I know Michael reads webappsec, he may have more examples. > > In my own code testing, I look for silly behaviors if a user can > insert a large or negative number. You'd be surprised how often it > occurs. There is no excuse not to include basic range checks when > performing data validation. > > thanks, > Andrew > > On 29/03/2006, at 2:30 PM, [EMAIL PROTECTED] wrote: > > > No you dont. > > > > Arrays are all bounds checked; ..., that is, the following code will > > throw an exception: > > > > ================================ > > class Foo { > > static { > > int[] m = new int[2]; > > System.out.println(m[34]); > > } > > } > > ================================ > > > > > > What do you mean by "overflow"? Do you mean this? > > > > ================================ > > class Foo { > > static { > > int m = Integer.MAX_VALUE; > > int k = Integer.MAX_VALUE + Integer.MAX_VALUE; > > System.out.println(m); > > System.out.println(k); > > System.exit(0); > > } > > } > > ================================ > > > > if so, I don't see how that is an issue. > > > > -- Michael > > > > > > > > On 3/29/06, Andrew van der Stock <[EMAIL PROTECTED]> wrote: > >> This is not quite true. > >> > >> Java does not prevent integer overflows (it will not throw an > >> exception). So you still have to be careful about array indexes. > >> > >> Andrew _______________________________________________ Secure Coding mailing list (SC-L) SC-L@securecoding.org List information, subscriptions, etc - http://krvw.com/mailman/listinfo/sc-l List charter available at - http://www.securecoding.org/list/charter.php
