Full Disclosure mailing list archives
Re: Most Linux distributions don't use tmpfs nor encrypt swap by default
From: Grandma Eubanks <tborland1 () gmail com>
Date: Thu, 12 Apr 2012 17:53:47 -0500
Fedora Core 15: /dev/mapper/vg_youwish-lv_swap swap swap defaults 0 0 tmpfs /tmp tmpfs defaults 0 0 Removed other options it should have, but defaults do not include nosuid,nodev,noexec. On 4/12/12, Mark Krenz <mark () suso com> wrote:
Hello. After posting the flaw with libvte's handling of the scrollback buffer (writing it to disk), there were several people who made the erroneous claim that most distributions of Linux use tmpfs now and encrypt swap and that this shouldn't be an issue. Because these claims attempted to diminish the importance of the flaw for many, I installed most of the popular distributions of Linux as well as some of the BSDs for comparison to see what their default setup was after installation. I have found that of the 35+ distribution versions that I tested, only the latest Arch Linux puts /tmp on tmpfs by default and the only other distributions that show it as an option during installation are Mageia or PC Linux OS. So the libvte flaw indeed is a widespread problem. I've documented the results at: http://www.climagic.org/bugreports/libvte-flaw-distro-defaults-chart.html You can view the libvte bug report here: http://climagic.org/bugreports/libvte-scrollback-written-to-disk.html Extra Note: I'm not suggesting that everyone put their /tmp on tmpfs and/or start using encrypted filesystem. There are other considerations which I talk about in the document above. -- Mark S. Krenz IT Director Suso Technology Services, Inc. Sent from Mutt using Linux _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
_______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Most Linux distributions don't use tmpfs nor encrypt swap by default Mark Krenz (Apr 12)
- Re: Most Linux distributions don't use tmpfs nor encrypt swap by default Grandma Eubanks (Apr 12)
- Re: Most Linux distributions don't use tmpfs nor encrypt swap by default Mark Krenz (Apr 13)
- Re: Most Linux distributions don't use tmpfs nor encrypt swap by default Feighen Oosterbroek (Apr 13)
- Re: Most Linux distributions don't use tmpfs nor encrypt swap by default _ (Apr 15)
- Re: Most Linux distributions don't use tmpfs nor encrypt swap by default Pedro Martelletto (Apr 16)
- Re: Most Linux distributions don't use tmpfs nor encrypt swap by default Mark Krenz (Apr 17)
- Re: Most Linux distributions don't use tmpfs nor encrypt swap by default Mark Krenz (Apr 13)
- Re: Most Linux distributions don't use tmpfs nor encrypt swap by default Grandma Eubanks (Apr 12)