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- Introduce sandboxing of the pre-auth privsep child using an optional
sshd_config(5) "UsePrivilegeSeparation=sandbox" mode that enables
mandatory restrictions on the syscalls the privsep child can perform.
- Add new SHA256-based HMAC transport integrity modes from
http://www.ietf.org/id/draft-dbider-sha2-mac-for-ssh-02.txt.
- The pre-authentication sshd(8) privilege separation slave process now
logs via a socket shared with the master process, avoiding the need to
maintain /dev/log inside the chroot (closes: #75043, #429243,
#599240).
- ssh(1) now warns when a server refuses X11 forwarding (closes:
#504757).
- sshd_config(5)'s AuthorizedKeysFile now accepts multiple paths,
separated by whitespace (closes: #76312). The authorized_keys2
fallback is deprecated but documented (closes: #560156).
- ssh(1) and sshd(8): set IPv6 traffic class from IPQoS, as well as IPv4
ToS/DSCP (closes: #498297).
- ssh-add(1) now accepts keys piped from standard input. E.g. "ssh-add
- < /path/to/key" (closes: #229124).
- Clean up lost-passphrase text in ssh-keygen(1) (closes: #444691).
- Say "required" rather than "recommended" in unprotected-private-key
warning (LP: #663455).
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than 'lsb_release -is' so that Ubuntu derivatives behave the same way as
Ubuntu itself.
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- openssh-server Recommends: ssh-import-id (no-op in Debian since that
package doesn't exist there, but this reduces the Ubuntu delta).
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authorized_keys lines for the same key; it's still not ideal, but at
least you'll only get one log entry per key (closes: #630606).
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- Make hostbased auth with ECDSA keys work correctly (closes: #633368).
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recommendation (closes: #622604).
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since the required minimum versions are rather old now anyway and
openssl has bumped its SONAME (thanks, Julien Cristau; closes: #620828).
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#614897).
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Joel Stanley).
-q -f /etc/ssh/ssh_host_ecdsa_key -N "" -t ecdsa'.
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- Fix stack information leak in legacy certificate signing
(http://www.openssh.com/txt/legacy-cert.adv).
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(LP: #708571).
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on upgrades
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SELinux build fix.
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installations or if you manually add 'HostKey
/etc/ssh/ssh_host_ecdsa_key' to /etc/ssh/sshd_config.
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- Implement Elliptic Curve Cryptography modes for key exchange (ECDH)
and host/user keys (ECDSA) as specified by RFC5656. ECDH and ECDSA
offer better performance than plain DH and DSA at the same equivalent
symmetric key length, as well as much shorter keys.
- sftp(1)/sftp-server(8): add a protocol extension to support a hard
link operation. It is available through the "ln" command in the
client. The old "ln" behaviour of creating a symlink is available
using its "-s" option or through the preexisting "symlink" command.
- scp(1): Add a new -3 option to scp: Copies between two remote hosts
are transferred through the local host (closes: #508613).
- ssh(1): "atomically" create the listening mux socket by binding it on
a temporary name and then linking it into position after listen() has
succeeded. This allows the mux clients to determine that the server
socket is either ready or stale without races (closes: #454784).
Stale server sockets are now automatically removed (closes: #523250).
- ssh(1): install a SIGCHLD handler to reap expired child process
(closes: #594687).
- ssh(1)/ssh-agent(1): honour $TMPDIR for client xauth and ssh-agent
temporary directories (closes: #357469, although only if you arrange
for ssh-agent to actually see $TMPDIR since the setgid bit will cause
it to be stripped off).
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which is intentionally no longer shipped in the openssh-server package
due to /var/run often being a temporary directory, is not removed on
upgrade (closes: #575582).
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longer issues.
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child processes, preventing lots of zombies when using ControlPersist
(closes: #594687).
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