[Bug 3532] New: ssh -Q CASignatureAlgorithms not working

bugzilla-daemon at mindrot.org bugzilla-daemon at mindrot.org
Sat Feb 4 05:11:05 AEDT 2023


https://bugzilla.mindrot.org/show_bug.cgi?id=3532

            Bug ID: 3532
           Summary: ssh -Q CASignatureAlgorithms not working
           Product: Portable OpenSSH
           Version: -current
          Hardware: amd64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: ssh
          Assignee: unassigned-bugs at mindrot.org
          Reporter: xspielinbox+mindrot at protonmail.com

The ssh man page (ssh(1)) states for the "-Q query_option" option that
"Alternatively, any keyword from ssh_config(5) or sshd_config(5) that
takes an algorithm list may be used as an alias for the corresponding
query_option."

However, even though CASignatureAlgorithms is listed as taking an
algorithm list in ssh_config(5) and sshd_config(5) it does not work
with 'ssh -Q'. This makes it extremely difficult to figure out what
arguments are accepted for a given version of OpenSSH for this
configuration option.

Looking at
https://github.com/openssh/openssh-portable/blob/master/ssh.c#L777 and
the following lines it seems like there is missing a case for
CASignatureAlgorithms.

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