[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20110523063951.GA2611@suse.de>
Date: Mon, 23 May 2011 08:39:51 +0200
From: Sebastian Krahmer <krahmer@...e.de>
To: oss-security@...ts.openwall.com
Subject: Re: Multiple libraries privilege checking
On Thu, May 19, 2011 at 12:45:23AM +0400, Solar Designer wrote:
> On Tue, May 17, 2011 at 01:18:33PM +0200, Sebastian Krahmer wrote:
> > I uploaded a openssl-1.0.0d patch to
> >
> > http://suse.de/~krahmer/libs-vs-fscaps
>
> Thank you!
>
> > The prefered way is to check the dumpable flag via prctl() which
> > is detected by the config script.
>
> This is fail-open (at build time). If the -e "/usr/include/sys/prctl.h"
> check somehow fails, we silently get an insecure build. Of course,
Honestly, that was the easiest I could do in that time frame. The openssl
config is a bit weird to me and the openssl project is not even providing
distclean source tarballs for download (they contain symlinks etc.).
It is also rather meant as a help for upstream which they could use as a base.
I am sure they know better how to combine it with their config scripts
and I am happy with changes as long as our resulting binary contains
the hardening. I will try to ping the openssl developers about it.
Sebastian
--
~ perl self.pl
~ $_='print"\$_=\47$_\47;eval"';eval
~ krahmer@...e.de - SuSE Security Team
---
SUSE LINUX Products GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 16746 (AG Nürnberg)
Maxfeldstraße 5
90409 Nürnberg
Germany
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
