[Python-ideas] Executable space protection: NX bit,

Wes Turner wes.turner at gmail.com
Mon Sep 3 22:32:43 EDT 2018

On Monday, September 3, 2018, Cameron Simpson <cs at cskk.id.au> wrote:

> On 03Sep2018 20:58, Wes Turner <wes.turner at gmail.com> wrote:
>> So, if an application accepts user-supplied input (such as a JSON
>> payload),
>> is that data marked as non-executable?
> Unless you've hacked the JSON decoder (I think you can supply a custom
> decoder for some things) all you're doing to get back is ints, strs, dicts
> and lists.  And floats. None of those is executable.

Can another process or exploitable C extension JMP to that data or no?

> Cheers,
> Cameron Simpson <cs at cskk.id.au>
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