This was fixed upstream on http://anongit.mindrot.org/openssh.git/commit/?id=819b44e8b9af6ce18d3ec7505b9f461bf7991a1f
which was released in 8.6p1. This affects impish, focal and bionic. ** Also affects: openssh (Ubuntu Bionic) Importance: Undecided Status: New ** Also affects: openssh (Ubuntu Impish) Importance: Undecided Status: New ** Also affects: openssh (Ubuntu Focal) Importance: Undecided Status: New ** Tags added: server-todo -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to openssh in Ubuntu. https://bugs.launchpad.net/bugs/1903516 Title: aborted (core dumped) when using ConnectTimeout > 2147483 Status in portable OpenSSH: Unknown Status in openssh package in Ubuntu: Triaged Status in openssh source package in Bionic: New Status in openssh source package in Focal: New Status in openssh source package in Impish: New Bug description: The ssh client fails with the message "Aborted (core dumped)" when setting the ConnectTimeout to 2147484 or higher. lsb_release: Linux Mint 20 (but also tested this on latest ubuntu:20.04 docker container) openssh-client version: 1:8.2p1-4ubuntu0.1 I expected that either the connect timeout would be used correctly, or that it would fail with a proper error message saying the connect timeout can't be higher than 2147483. What happened: $ ssh -o "ConnectTimeout=2147484" localhost Aborted (core dumped) To manage notifications about this bug go to: https://bugs.launchpad.net/openssh/+bug/1903516/+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