Re: INFO Heap Crash

2018-06-02 Thread Gavin Smith
On Fri, Apr 13, 2018 at 7:26 AM, cabstand  wrote:
> On Ubuntu 16.04 TLS I have been injecting /dev/urandom data into
> commands via bash. I consistently get heap crashes in info.
>
> It takes about 400M of regular user data to get the crash. To date I
> have not isolated the random string section that cause the crash.
>
> Simple attack example:
>
> dd if=/dev/urandom | info 2> error.txt
>
> * urandom has extra seeding
> * Ubuntu is running in Virtualbox Version 5.2.8 r121009 (Qt5.6.2) on
> Win 8.1,which is not memory constrained.
>
> Hope this helps

Thank you for the report. When I tried it the results were different
each time, but in some cases the crash happened in the "echo area"
handling code. My guess is that the code is not set up to deal with
very long input in the echo area.



INFO Heap Crash

2018-04-13 Thread cabstand
Hello

On Ubuntu 16.04 TLS I have been injecting /dev/urandom data into
commands via bash. I consistently get heap crashes in info.

It takes about 400M of regular user data to get the crash. To date I
have not isolated the random string section that cause the crash.

Simple attack example:

dd if=/dev/urandom | info 2> error.txt

* urandom has extra seeding
* Ubuntu is running in Virtualbox Version 5.2.8 r121009 (Qt5.6.2) on
Win 8.1,which is not memory constrained.

Hope this helps

Jeff M

IT Services