Thank you for taking the time to report this bug while providing a good
reproducer.
I was able to reproduce in Focal and Bionic
# ssh-keyscan github.com >test_known_hosts
# ls -la test_known_hosts
-rw-r--r-- 1 root root 656 Mar 28 14:24 test_known_hosts
# ssh-keygen -R github.com -f test_known_hosts
test_known_hosts updated.
Original contents retained as test_known_hosts.old
# ls -la test_known_hosts
-rw------- 1 root root 0 Mar 28 14:25 test_known_hosts
However in Jammy and Impish this is fixed:
# ssh-keyscan github.com >test_known_hosts
# ls -la test_known_hosts
-rw-r--r-- 1 root root 656 Mar 28 14:30 test_known_hosts
# ssh-keygen -R github.com -f test_known_hosts
test_known_hosts updated.
Original contents retained as test_known_hosts.old
# ls -la test_known_hosts
-rw-r--r-- 1 root root 0 Mar 28 14:31 test_known_hosts
With this already being fixed in the newer releases it should just be a matter
of finding the relevant commit and adding it to focal and bionic.
Thanks
** Also affects: openssh (Ubuntu Impish)
Importance: Undecided
Status: New
** Also affects: openssh (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: openssh (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: openssh (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: openssh (Ubuntu Impish)
Status: New => Fix Released
** Changed in: openssh (Ubuntu Jammy)
Status: New => Fix Released
** Changed in: openssh (Ubuntu Bionic)
Status: New => Confirmed
** Changed in: openssh (Ubuntu Focal)
Status: New => Confirmed
** Tags added: server-todo
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1966591
Title:
ssh-keygen -R changes known_hosts file permissions (mode)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1966591/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
