** Description changed: strongSwan is effectively incompatible with iOS 10+ and macOS 10.11+ devices. Dead peer detection does not work for these devices and they continually re-establish security associations (SAs) as a result. Please see the issues described in further detail below: strongSwan confirmed the issue and patched it in 5.5.1: https://wiki.strongswan.org/issues/2126 strongSwan recommends a workaround that breaks other functionality: https://wiki.strongswan.org/projects/strongswan/wiki/AppleClients#IKEv2-on-iOS-9-and-iOS-10 Ubuntu 17.04 has packaged strongSwan 5.5.1 which fixes this issue. I - would recommend backporting strongSwan 5.5.1 to Ubuntu 16.04. + would recommend an SRU for strongSwan 5.3.5 to 5.5.1 in Ubuntu 16.04. [Impact] Ubuntu users are running into this bug in normal usage: https://github.com/trailofbits/algo/issues/430 [Test Case] In order to test this issue: 1. Deploy an Ubuntu 16.04 server with strongSwan via Algo (https://github.com/trailofbits/algo) 2. Connect an iOS client 3. Wait a few minutes for the reconnects to start based on broken dead peer detection In order to test the fix for this issue: 1. Deploy an Ubuntu 17.04 server with strongSwan via Algo (modify config.cfg to select 17.04) 2. Connect an iOS client 3. Wait the same time period as before and notice that the connection does not drop [Regression Potential] strongSwan and IPSEC software in general change at a very slow rate. In our tests with Algo, the exact same ipsec.conf and related configuration work for strongSwan 5.5.1 that worked for 5.3.5.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1687711 Title: strongSwan 5.3.5 has a known incompatibility with iOS/macOS 10+ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/strongswan/+bug/1687711/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
