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Release notes are available at https://www.openssh.com/txt/release-9.2 OpenSSH 9.2 contains fixes for two security problems and a memory safety problem. The memory safety problem is not believed to be exploitable. These fixes have already been committed to OpenSSH 9.1 in FreeBSD. Some other notable items from the release notes: * ssh(1): add a new EnableEscapeCommandline ssh_config(5) option that controls whether the client-side ~C escape sequence that provides a command-line is available. Among other things, the ~C command-line could be used to add additional port-forwards at runtime. * sshd(8): add support for channel inactivity timeouts via a new sshd_config(5) ChannelTimeout directive. This allows channels that have not seen traffic in a configurable interval to be automatically closed. Different timeouts may be applied to session, X11, agent and TCP forwarding channels. * sshd(8): add a sshd_config UnusedConnectionTimeout option to terminate client connections that have no open channels for a length of time. This complements the ChannelTimeout option above. * sshd(8): add a -V (version) option to sshd like the ssh client has. * scp(1), sftp(1): add a -X option to both scp(1) and sftp(1) to allow control over some SFTP protocol parameters: the copy buffer length and the number of in-flight requests, both of which are used during upload/download. Previously these could be controlled in sftp(1) only. This makes them available in both SFTP protocol clients using the same option character sequence. * ssh-keyscan(1): allow scanning of complete CIDR address ranges, e.g. "ssh-keyscan 192.168.0.0/24". If a CIDR range is passed, then it will be expanded to all possible addresses in the range including the all-0s and all-1s addresses. bz#976 * ssh(1): support dynamic remote port forwarding in escape command-line's -R processing. bz#3499 MFC after: 1 week Sponsored by: The FreeBSD Foundation
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53 lines
2.1 KiB
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See https://www.openssh.com/releasenotes.html#9.2p1 for the release notes.
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Please read https://www.openssh.com/report.html for bug reporting
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instructions and note that we do not use Github for bug reporting or
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patch/pull-request management.
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This is the port of OpenBSD's excellent OpenSSH[0] to Linux and other
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Unices.
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OpenSSH is based on the last free version of Tatu Ylonen's sample
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implementation with all patent-encumbered algorithms removed (to
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external libraries), all known security bugs fixed, new features
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reintroduced and many other clean-ups. OpenSSH has been created by
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Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo de Raadt,
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and Dug Song. It has a homepage at https://www.openssh.com/
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This port consists of the re-introduction of autoconf support, PAM
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support, EGD/PRNGD support and replacements for OpenBSD library
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functions that are (regrettably) absent from other unices. This port
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has been best tested on AIX, Cygwin, HP-UX, Linux, MacOS/X,
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FreeBSD, NetBSD, OpenBSD, OpenServer, Solaris and UnixWare.
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This version actively tracks changes in the OpenBSD CVS repository.
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The PAM support is now more functional than the popular packages of
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commercial ssh-1.2.x. It checks "account" and "session" modules for
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all logins, not just when using password authentication.
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There is now several mailing lists for this port of OpenSSH. Please
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refer to https://www.openssh.com/list.html for details on how to join.
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Please send bug reports and patches to https://bugzilla.mindrot.org or
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the mailing list openssh-unix-dev@mindrot.org. To mitigate spam, the
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list only allows posting from subscribed addresses. Code contribution
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are welcomed, but please follow the OpenBSD style guidelines[1].
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Please refer to the INSTALL document for information on dependencies and
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how to install OpenSSH on your system.
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Damien Miller <djm@mindrot.org>
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Miscellania -
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This version of OpenSSH is based upon code retrieved from the OpenBSD CVS
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repository which in turn was based on the last free sample implementation
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released by Tatu Ylonen.
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References -
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[0] https://www.openssh.com/
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[1] https://man.openbsd.org/style.9
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