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Date: Sat, 06 Dec 2014 11:43:22 +0100
From: Florent Daigniere <florent.daigniere@...stmatta.com>
To: oss-security@...ts.openwall.com
Subject: Re: Offset2lib: bypassing full ASLR on 64bit Linux
On Fri, 2014-12-05 at 14:15 -0800, Reed Loden wrote:
> On Fri, Dec 5, 2014 at 7:09 AM, Daniel Micay <danielmicay@...il.com> wrote:
>
> >
> > Mozilla has no excuse for not enabling PIE for Firefox, because 99% of
> > the code is in dynamic libraries already. It has no performance impact.
> >
>
> For the record, Mozilla tried it several months ago and had to back it out.
>
> "Nautilus (the file manager) can't open PIE executables, which makes
> distributing PIE executable essentially impossible."
>
> https://bugzilla.mozilla.org/show_bug.cgi?id=857628#c6 (which caused
> https://bugzilla.mozilla.org/show_bug.cgi?id=1076892)
>
> ~reed
Here's one of the tickets where the information about compiler hardening
flags is centralized... They have an endless supply of excuses not to
enable any (not even -D_FORTIFY_SOURCE=2 or -Wformat-security)!
https://bugzilla.mozilla.org/show_bug.cgi?id=620058
Florent
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