Re: ssh_dispatch_run_fatal: incorrect signature

Sergio Had <[email protected]> Fri, 1 Nov 2024 16:15:05 +0800
Newsgroups gmane.os.openbsd.ppc
Message-ID <dc761a4f-2124-40ca-a6ef-0a33bdc4b1b7@Spark>
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Is the bug OpenBSD-specific by the way or does it affect OpenSSH on all BE platforms?

Sergey Fedorov
On Nov 1, 2024 at 12:35 +0800, George Koehler <[email protected]>, wrote:
> An errata from October 29, 2024 for OpenBSD 7.6 fixed a problem with
> OpenSSH on big-endian platforms (like macppc and powerpc64),
>
> https://www.openbsd.org/errata76.html
>
> If a big-endian machine doesn't have the errata fix, ssh might fail
> with an error,
>
> $ ssh 192.168.0.112
> ssh_dispatch_run_fatal: Connection to 192.168.0.112 port 22: incorrect signature
>
> One can work around the problem by removing mlkem768x25519-sha256 from
> KexAlgorithms,
>
> $ ssh -o KexAlgorithms='-mlkem*' 192.168.0.112
>

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<div dir=3D=22auto=22>Is the bug OpenBSD-specific by the way or does it a=
ffect OpenSSH on all BE platforms=3F</div>
</div>
<div name=3D=22messageSignatureSection=22><br />
Sergey =46edorov</div>
<div name=3D=22messageReplySection=22>On Nov 1, 2024 at 12:35 +0800, Geor=
ge Koehler &lt;kernigh=40gmail.com&gt;, wrote:<br />
<blockquote type=3D=22cite=22 style=3D=22border-left-color: grey; border-=
left-width: thin; border-left-style: solid; margin: 5px 5px;padding-left:=
 10px;=22>An errata from October 29, 2024 for OpenBSD 7.6 fixed a problem=
 with<br />
OpenSSH on big-endian platforms (like macppc and powerpc64),<br />
<br />
https://www.openbsd.org/errata76.html<br />
<br />
If a big-endian machine doesn't have the errata fix, ssh might fail<br />=

with an error,<br />
<br />
=24 ssh 192.168.0.112<br />
ssh=5Fdispatch=5Frun=5Ffatal: Connection to 192.168.0.112 port 22: incorr=
ect signature<br />
<br />
One can work around the problem by removing mlkem768x25519-sha256 from<br=
 />
KexAlgorithms,<br />
<br />
=24 ssh -o KexAlgorithms=3D'-mlkem*' 192.168.0.112<br />
<br /></blockquote>
</div>
</body>
</html>

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