ASLR work into -HEAD ?

[Shawn Webb]

On May 27, 2015 2:20 AM, "Alfred Perlstein" <alfred at freebsd.org> wrote:
>
>
>
> On 5/24/15 1:43 PM, K. Macy wrote:
>>
>> On May 22, 2015 4:41 PM, "Bryan Drewery" <bdrewery at freebsd.org> wrote:
>>>
>>> On 5/20/2015 12:24 PM, Pedro Giffuni wrote:
>>>>
>>>> My claim is that the majority of "professional" breachers and
>>>> governments already have ASLR workarounds pre-coded and ready
>>>> to launch. Finding an exploit is more difficult than beating
>>>> ASLR so they are not going to hint everyone that they have
>>>> an exploit until they can take all the linux/windows/MacOSX
>>>> at the same time.
>>>>
>>>> The cost for the NSA and/or anonymous to step on
>>>> ASLR is zero.
>>>
>>
>> Correct. But who are we really protecting against? If it's the NSA only
air
>> gap will really do.  In reality it's just a matter of making the cost of
>> circumventing protections exceed the value of the data or items being
>> protected. Locking one's doors and windows doesn't make one's house
>> impenetrable by any stretch, but it does deter opportunistic passerby.
>>
>> Protecting against state overreach is a political matter and shouldn't
>> factor into whether to invest in deterring lesser malfeasors.
>>
>> I'm sorry, but Bryan has it right. The political discussion is a side
show.
>>
>
> +1, also having a line item is good.  Not having ASLR just makes FreeBSD
look derp.
>
> DragonFly BSD has an implementation of ASLR based upon OpenBSD's model,
added in 2010.[
> Microsoft's Windows Vista (released January 2007) and later have ASLR
enabled
> In 2003, OpenBSD became the first mainstream operating system to support
partial ASLR
> In Mac OS X Leopard 10.5 (released October 2007), Apple introduced
randomization for system libraries
>
> Linux has enabled a weak form of ASLR by default since kernel version
2.6.12 (released June 2005).
>
> So basically 1 more week and we can be 10 years behind Linux. :)
>
> w00t.
>
> -Alfred

FreeBSD is 14 years behind Linux if you count PaX's ASLR patch.

Thanks,

Shawn