How does this proposed change relate to LP: #1726124? Are users who are currently relying on correct split DNS handling by network-manager +systemd-resolved in bionic going to see this regress and have all DNS requests now sent over the VPN when they aren't supposed to?
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1754671 Title: Full-tunnel VPN DNS leakage regression Status in NetworkManager: Fix Released Status in network-manager package in Ubuntu: Fix Released Status in network-manager source package in Bionic: Fix Committed Bug description: * Impact When using a VPN the DNS requests might still be sent to a DNS server outside the VPN when they should not * Test case Configure the system to send all the traffic to a VPN, do a name resolution, the request should not go to the public DNS server (to be checked by capturing the traffic by example with wireshark) * Regression potential The code change the handling of DNS servers when using a VPN, we should check that name resolution still work whne using a VPN in different configurations ----------------- In 16.04 the NetworkManager package used to carry this patch: http://bazaar.launchpad.net/~network-manager/network-manager/ubuntu/view/head:/debian/patches/Filter-DNS-servers-to-add-to-dnsmasq-based-on-availa.patch It fixed the DNS setup so that when I'm on the VPN, I am not sending unencrypted DNS queries to the (potentially hostile) local nameservers. This patch disappeared in an update. I think it was present in 1.2.2-0ubuntu0.16.04.4 but was dropped some time later. This security bug exists upstream too: https://bugzilla.gnome.org/show_bug.cgi?id=746422 It's not a *regression* there though, as they didn't fix it yet (unfortunately!) To manage notifications about this bug go to: https://bugs.launchpad.net/network-manager/+bug/1754671/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
