[Whonix-devel] [tor-dev] TBB Memory Allocator choice fingerprint implications

Patrick Schleizer patrick-mailinglists at whonix.org
Sun Aug 18 04:17:00 CEST 2019

Btw Hardened Malloc does not require recompilation of TBB.

Compilation of Hardened Malloc is easy.


It then can be used with TBB or any application using LD_PRELOAD
environment variable.

LD_PRELOAD='/path/to/libhardened_malloc.so' /path/to/program

Just now created:
consider using Hardened Malloc for better security in TBB

Tom Ritter:
> On Sat, 17 Aug 2019 at 15:06, procmem at riseup.net <procmem at riseup.net> wrote:
>> Question for the Tor Browser experts. Do you know if it is possible to
>> remotely fingerprint the browser based on the memory allocator it is
>> using? (via JS or content rendering)
> Fingerprint what aspect of the browser/machine?

Browser web fingerprinting. The fingerprint that remote websites can see.

Can web servers guess that a different memory allocator (Hardened
Malloc) is being used due to difference in performance or other glitches?


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