desktop-packages team mailing list archive

["utnubu\(k\)" <shaddowy2@xxxxxxxx>]

I believe it would be great to have this feature in the upcoming LTS
release, as the problem affects more and more users in the future,
especially with the 5 year support cycle. I think it's not a big deal
for admins to disable it, while most plain users aren't aware of the
problem nor have the knowledge to change the setting according to their
needs, which is privacy and security. There should be at least a simple
gui checkbox to let the user choose which state he wants.

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to network-manager in Ubuntu.
https://bugs.launchpad.net/bugs/176125

Title:
  Ubuntu should activate the IPv6 privacy extension by default (echo 2
  >/proc/sys/net/ipv6/conf/all/use_tempaddr)

Status in “network-manager” package in Ubuntu:
  Confirmed
Status in “procps” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: procps

  Some background information:
  recently "Free ADSL", one of the biggest ISP in France, added IPv6 support possibly exposing 2.5 millions of users to IPv6

  The address are configured automatically and by default linux will build it using the MAC address. However this presents a risk of privacy loss:
  - there is an unique identifier which can be used by website to track the location of a laptop or pda
  - some information about the model of the network card (other information can be probably derived if you know the serial number of the card) is leaked

  The following rfc (http://tools.ietf.org/html/draft-ietf-ipngwg-temp-
  addresses-v2-00) mitigitates this problems by introducing temporary
  addresses to be used by outgoing connection (in addition to the static
  address which can be used for incoming connection and have a dns name
  associated with it).

  To activate it under linux you just need to activate the following in sysctl:
  echo 2 >/proc/sys/net/ipv6/conf/all/use_tempaddr
  or add "net.ipv6.conf.all.use_tempaddr=2"

  thanks for protecting the privacy of the clueless users by default :)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/176125/+subscriptions