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- CVE-2007-4752: Prevent ssh(1) from using a trusted X11 cookie if
creation of an untrusted cookie fails; found and fixed by Jan Pechanec
(closes: #444738).
- sshd(8) in new installations defaults to SSH Protocol 2 only. Existing
installations are unchanged.
- The SSH channel window size has been increased, and both ssh(1)
sshd(8) now send window updates more aggressively. These improves
performance on high-BDP (Bandwidth Delay Product) networks.
- ssh(1) and sshd(8) now preserve MAC contexts between packets, which
saves 2 hash calls per packet and results in 12-16% speedup for
arcfour256/hmac-md5.
- A new MAC algorithm has been added, UMAC-64 (RFC4418) as
"umac-64@openssh.com". UMAC-64 has been measured to be approximately
20% faster than HMAC-MD5.
- Failure to establish a ssh(1) TunnelForward is now treated as a fatal
error when the ExitOnForwardFailure option is set.
- ssh(1) returns a sensible exit status if the control master goes away
without passing the full exit status.
- When using a ProxyCommand in ssh(1), set the outgoing hostname with
gethostname(2), allowing hostbased authentication to work.
- Make scp(1) skip FIFOs rather than hanging (closes: #246774).
- Encode non-printing characters in scp(1) filenames. These could cause
copies to be aborted with a "protocol error".
- Handle SIGINT in sshd(8) privilege separation child process to ensure
that wtmp and lastlog records are correctly updated.
- Report GSSAPI mechanism in errors, for libraries that support multiple
mechanisms.
- Improve documentation for ssh-add(1)'s -d option.
- Rearrange and tidy GSSAPI code, removing server-only code being linked
into the client.
- Delay execution of ssh(1)'s LocalCommand until after all forwardings
have been established.
- In scp(1), do not truncate non-regular files.
- Improve exit message from ControlMaster clients.
- Prevent sftp-server(8) from reading until it runs out of buffer space,
whereupon it would exit with a fatal error (closes: #365541).
- pam_end() was not being called if authentication failed
(closes: #405041).
- Manual page datestamps updated (closes: #433181).
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contrib/suse/openssh.spec] Crank version.
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~/.ssh/identity.pub, in line with ssh-keygen (thanks, Greg Norris;
closes: #234627).
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Eisentraut; closes: #291534).
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closes: #221675).
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changes not previously backported to 4.3p2:
- 4.4/4.4p1 (http://www.openssh.org/txt/release-4.4):
+ On portable OpenSSH, fix a GSSAPI authentication abort that could be
used to determine the validity of usernames on some platforms.
+ Implemented conditional configuration in sshd_config(5) using the
"Match" directive. This allows some configuration options to be
selectively overridden if specific criteria (based on user, group,
hostname and/or address) are met. So far a useful subset of
post-authentication options are supported and more are expected to
be added in future releases.
+ Add support for Diffie-Hellman group exchange key agreement with a
final hash of SHA256.
+ Added a "ForceCommand" directive to sshd_config(5). Similar to the
command="..." option accepted in ~/.ssh/authorized_keys, this forces
the execution of the specified command regardless of what the user
requested. This is very useful in conjunction with the new "Match"
option.
+ Add a "PermitOpen" directive to sshd_config(5). This mirrors the
permitopen="..." authorized_keys option, allowing fine-grained
control over the port-forwardings that a user is allowed to
establish.
+ Add optional logging of transactions to sftp-server(8).
+ ssh(1) will now record port numbers for hosts stored in
~/.ssh/known_hosts when a non-standard port has been requested
(closes: #50612).
+ Add an "ExitOnForwardFailure" option to cause ssh(1) to exit (with a
non-zero exit code) when requested port forwardings could not be
established.
+ Extend sshd_config(5) "SubSystem" declarations to allow the
specification of command-line arguments.
+ Replacement of all integer overflow susceptible invocations of
malloc(3) and realloc(3) with overflow-checking equivalents.
+ Many manpage fixes and improvements.
+ Add optional support for OpenSSL hardware accelerators (engines),
enabled using the --with-ssl-engine configure option.
+ Tokens in configuration files may be double-quoted in order to
contain spaces (closes: #319639).
+ Move a debug() call out of a SIGCHLD handler, fixing a hang when the
session exits very quickly (closes: #307890).
+ Fix some incorrect buffer allocation calculations (closes: #410599).
+ ssh-add doesn't ask for a passphrase if key file permissions are too
liberal (closes: #103677).
+ Likewise, ssh doesn't ask either (closes: #99675).
- 4.6/4.6p1 (http://www.openssh.org/txt/release-4.6):
+ sshd now allows the enabling and disabling of authentication methods
on a per user, group, host and network basis via the Match directive
in sshd_config.
+ Fixed an inconsistent check for a terminal when displaying scp
progress meter (closes: #257524).
+ Fix "hang on exit" when background processes are running at the time
of exit on a ttyful/login session (closes: #88337).
* Update to current GSSAPI patch from
http://www.sxw.org.uk/computing/patches/openssh-4.6p1-gsskex-20070312.patch;
install ChangeLog.gssapi.
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[contrib/suse/openssh.spec] crank spec files for release
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platforms don't have it. Patch from dleonard at vintela.com.
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icon extension from .desktop file (closes:
https://launchpad.net/bugs/27152).
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versions.
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versions.
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while setting up the ssh service account. Patch from Corinna Vinschen.
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[contrib/redhat/sshd.init openbsd-compat/Makefile.in]
[openbsd-compat/openbsd-compat.h openbsd-compat/port-linux.c]
[openbsd-compat/port-linux.h] Add support for SELinux, setting
the execution and TTY contexts. based on patch from Daniel Walsh,
bz #880; ok dtucker@
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file rather than directory, required as Cygwin will be importing lastlog(1).
Also tightens up permissions on the file. Patch from vinschen@redhat.com.
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contrib/redhat/openssh.spec contrib/suse/openssh.spec] Bump version
strings to match 4.3p2 release.
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[contrib/suse/openssh.spec] Update versions ahead of release
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tcpip service so it's always started after IP is up. Patch from
vinschen at redhat.com.
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sshd contrib/suse/sysconfig.ssh] Bug #1106: Updated SuSE spec and init
files from imorgan AT nas.nasa.gov
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prompt. Patch from vinschen at redhat.com.
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- Added SELinux capability, and turned it on be default. Added
restorecon calls in preinst and postinst (should not matter if the
machine is not SELinux aware). By and large, the changes made should
have no effect unless the rules file calls --with-selinux; and even
then there should be no performance hit for machines not actively
running SELinux.
- Modified the preinst and postinst to call restorecon to set the
security context for the generated public key files.
- Added a comment to /etc/pam.d/ssh to indicate that an SELinux system
may want to also include pam_selinux.so.
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vintela.com.
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[contrib/suse/openssh.spec] Update spec file versions to 4.1p1
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user-mode mounts in Cygwin installation. Patch from vinschen at redhat.com.
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interested in which is much faster in large (eg LDAP or NIS) environments.
Patch from dleonard at vintela.com.
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with a rpm -F
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localized name of the local administrators group more reliable. From
vinschen at redhat.com.
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[contrib/suse/openssh.spec] Update spec file versions
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from vinschen at redhat.com
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#296487).
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amarendra.godbole at ge com.
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install process. Patch from vinschen at redhat.com.
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of shell constructs. Patch from cjwatson at debian.org.
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peak AT argo.troja.mff.cuni.cz
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