I submitted a Pull Request to update MacPorts' OpenSSH to 9.9p2 here:

https://github.com/macports/macports-ports/pull/27712

GitHub Continuous Integration checks are running. Hopefully they will be OK (Update 2 out of 3 have completed successfully, which is a good sign).

I tested locally without issues, but I also build against LibreSSL locally, whereas GitHub CI and MacPorts' Build Bots I think default to OpenSSL.

This release is to address some vulnerabilities identified by Qualys and other less critical bugs.

More details from upstream here:

https://www.openssh.com/releasenotes.html#9.9p2

Of particular note:

" Fix CVE-2025-26465 - ssh(1) in OpenSSH versions 6.8p1 to 9.9p1
(inclusive) contained a logic error that allowed an on-path
attacker (a.k.a MITM) to impersonate any server when the
VerifyHostKeyDNS option is enabled. This option is off by default.

* Fix CVE-2025-26466 - sshd(8) in OpenSSH versions 9.5p1 to 9.9p1
(inclusive) is vulnerable to a memory/CPU denial-of-service related
to the handling of SSH2MSGPING packets. This condition may be
mitigated using the existing PerSourcePenalties feature.

Both vulnerabilities were discovered and demonstrated to be exploitable
by the Qualys Security Advisory team. We thank them for their detailed
review of OpenSSH."

If I read everything correctly, these vulnerabilities primarily only impact the Portable OpenSSH releases (which is what MacPorts uses). However, OpenBSD has also issued the following errata to mitigate one of the issues as it also appears to impact OpenBSD users:

"008: SECURITY FIX: February 18, 2025 All architectures
sshd(8) denial of service relating to SSH2MSGPING handling. ssh(1) server impersonation when VerifyHostKeyDNS enabled.
A source code patch exists which remedies this problem."

Source code patch for OpenBSD here:

https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/008_ssh.patch.sig

Having written as much, it appears as if the main OpenSSH version for OpenBSD is still 9.9, so I am not going to make a submission for undeadly.org Other editors reading this are welcome to though, I just kind of have a lot of other stuff on my plate at present.

As usual, I also have too much going on in my life to want more responsibilities such as commit access within MacPorts, so it's up to someone else to merge it.

#OpenSSH #MacPorts #SecureShell #InfoSec #Cryptography #Security #CVE #PatchTuesday #OpenSource #OpenBSD