Public bug reported:
After upgrade to 16.04 ssh client will not connect to any host,
reporting
/home/tj/.ssh/config line 109: Bad protocol spec '1'.
The entry is:
Host ups-01
Hostname 10.254.0.1
User hostmaster
IdentityFile ~/.ssh/id_hostmaster
IdentitiesOnly yes
Protocol 1
If this were an entry in /etc/ssh/ssh_config and the user had no
privileges to edit that file it could create a denial of service to the
ssh client (if the user doesn't know how to over-ride the config).
It would be helpful if the openssh-client postinst script were to grep
the standard config files (including for users) and add a warning to the
motd and syslog if any invalidated configuration statements are found.
This will especially affect connections to embedded devices - in this
case it is an ssh server on a management VLAN in one of several network-
attached Uninterruptable Power Supplies that cannot be upgraded, and
only support Protocol 1.
According to the 16.04 Release Notes protocol 1 requires the openssh-
client-ssh1 package with the ssh1 binary.
** Affects: openssh (Ubuntu)
Importance: Undecided
Status: New
** Description changed:
After upgrade to 16.04 ssh client will not connect to any host,
reporting
/home/tj/.ssh/config line 109: Bad protocol spec '1'.
The entry is:
Host ups-01
Hostname 10.254.0.1
User hostmaster
IdentityFile ~/.ssh/id_hostmaster
IdentitiesOnly yes
Protocol 1
-
- If this were an entry in /etc/ssh/ssh_config and the user had no privileges
to edit that file it could create a denial of service to the ssh client (if the
user doesn't know how to over-ride the config).
+ If this were an entry in /etc/ssh/ssh_config and the user had no
+ privileges to edit that file it could create a denial of service to the
+ ssh client (if the user doesn't know how to over-ride the config).
It would be helpful if the openssh-client postinst script were to grep
the standard config files (including for users) and add a warning to the
motd and syslog if any invalidated configuration statements are found.
This will especially affect connections to embedded devices - in this
- case it is an ssh server on a management VLAN in a network-attached
- 32-port switched Cabinet Distribution Unit (CDU) that cannot be
- upgraded, and only supports Protocol 1.
+ case it is an ssh server on a management VLAN in one of several network-
+ attached Uninterruptable Power Supplies that cannot be upgraded, and
+ only support Protocol 1.
According to the 16.04 Release Notes protocol 1 requires the openssh-
client-ssh1 package with the ssh1 binary.
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https://bugs.launchpad.net/bugs/1574415
Title:
[16.04] ssh <host>: Bad protocol spec '1'
Status in openssh package in Ubuntu:
New
Bug description:
After upgrade to 16.04 ssh client will not connect to any host,
reporting
/home/tj/.ssh/config line 109: Bad protocol spec '1'.
The entry is:
Host ups-01
Hostname 10.254.0.1
User hostmaster
IdentityFile ~/.ssh/id_hostmaster
IdentitiesOnly yes
Protocol 1
If this were an entry in /etc/ssh/ssh_config and the user had no
privileges to edit that file it could create a denial of service to
the ssh client (if the user doesn't know how to over-ride the config).
It would be helpful if the openssh-client postinst script were to grep
the standard config files (including for users) and add a warning to
the motd and syslog if any invalidated configuration statements are
found.
This will especially affect connections to embedded devices - in this
case it is an ssh server on a management VLAN in one of several
network-attached Uninterruptable Power Supplies that cannot be
upgraded, and only support Protocol 1.
According to the 16.04 Release Notes protocol 1 requires the openssh-
client-ssh1 package with the ssh1 binary.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1574415/+subscriptions
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