Please note that this mail was generated by a script.
The described changes are computed based on the x86_64 DVD.
The full online repo contains too many changes to be listed here.
Please check the known defects of this snapshot before upgrading:
https://openqa.opensuse.org/tests/overview?distri=opensuse&version=15.0&build=228.2&groupid=50
https://bugzilla.opensuse.org/buglist.cgi?product=openSUSE%20Distribution&query_format=advanced&resolution=---&version=Leap%2015.0
When you reply to discuss some issues, make sure to change the subject.
Please use the test plan at
https://docs.google.com/spreadsheets/d/1AGKijKpKiJCB616-bHVoNQuhWHpQLHPWCb3m...
to record your testing efforts and use bugzilla to report bugs.
Packages changed:
bash
ceph (13.0.2.984+g852d3f1411 -> 13.0.2.1874+ge31585919b)
gpm
gstreamer-plugins-libav
libreoffice (6.0.3.2 -> 6.0.4.1)
open-iscsi
openssh
plasma5-openSUSE
plasma5-workspace
screen
sddm
yast2-trans (84.87.20180424.7ac5bcf28 -> 84.87.20180427.16d13b087)
=== Details ===
==== bash ====
Subpackages: bash-doc bash-lang libreadline7 readline-doc
- Add patch bash-4.4-wait-sigint-handler.patch to fix bug bsc#1086247
that is repeating self inserting trap due external command in the
trap.
==== ceph ====
Version update (13.0.2.984+g852d3f1411 -> 13.0.2.1874+ge31585919b)
- Update to 13.0.2-1874-ge31585919b:
+ based on upstream master 510762f51e346836492a0a8f83a056944ee6e046
* add liblz4 build- and runtime dependency
* move ceph-disk runtime dependencies from ceph-osd to ceph-base
- Update to 13.0.2-992-g418baeac64:
+ fix ceph-detect-init for recent SUSEs (bsc#1090072)
- rewrite README-ceph-test.txt for clarity
==== gpm ====
Subpackages: libgpm2
- Use %license instead of %doc [bsc#1082318]
==== gstreamer-plugins-libav ====
- Explicitly version pkgconfig(libavcodec), pkgconfig(libavfilter),
pkgconfig(libavformat), pkgconfig(libavutil) and
pkgconfig(libswscale) BuildRequires to less than the symbol
versions provided by ffmpeg4 branch until upstream catches up.
Currently provided by new ffmpeg3 compatability package.
==== libreoffice ====
Version update (6.0.3.2 -> 6.0.4.1)
Subpackages: libreoffice-base libreoffice-base-drivers-mysql libreoffice-branding-upstream libreoffice-calc libreoffice-draw libreoffice-filters-optional libreoffice-gnome libreoffice-gtk3 libreoffice-icon-themes libreoffice-impress libreoffice-kde4 libreoffice-l10n-cs libreoffice-l10n-da libreoffice-l10n-de libreoffice-l10n-en libreoffice-l10n-es libreoffice-l10n-fi libreoffice-l10n-fr libreoffice-l10n-hu libreoffice-l10n-it libreoffice-l10n-ja libreoffice-l10n-nb libreoffice-l10n-nl libreoffice-l10n-pl libreoffice-l10n-pt_BR libreoffice-l10n-ru libreoffice-l10n-sv libreoffice-l10n-zh_CN libreoffice-l10n-zh_TW libreoffice-mailmerge libreoffice-math libreoffice-pyuno libreoffice-writer libreofficekit
- Do not require update-desktop-files on 15+ bsc#1090737
- Remove aarch64 condition in _constraints
- Drop patch bnc1083525.patch merged upstream
- Fix build with new icu 61+
* libreoffice-icu61.patch
- Version update to 6.0.4.1:
* Another bugfix update containing >60 bugfixes
- LO-L3: DOCX import: missing table background color
* bnc1083525.patch
- Do not enable LTO on older codestreams, too old toolchain
==== open-iscsi ====
Subpackages: iscsiuio libopeniscsiusr0_1_0
- Ensure we can get qedi transport name (bsc#1090275), updating:
* open-iscsi-SUSE-latest.diff.bz2
==== openssh ====
Subpackages: openssh-helpers
- Use %license instead of %doc [bsc#1082318]
- add OpenSSL 1.0 to 1.1 shim to remove dependency on old OpenSSL
(update tracker: bsc#1080779)
- Add missing crypto hardware enablement patches for IBM mainframes
(FATE#323902)
- add missing part of systemd integration (unit type)
- BuildRequire pkgconfig(libsystemd) instead of systemd-devel:
allow the scheduler to pick systemd-mini flavors to get build
going.
- Replace forgotten references to /var/adm/fillup-templates
with new %_fillupdir macro (boo#1069468)
- tighten configuration access rights
- Update to vanilla 7.6p1
Most important changes (more details below):
* complete removal of the ancient SSHv1 protocol
* sshd(8) cannot run without privilege separation
* removal of suport for arcfourm blowfish and CAST ciphers
and RIPE-MD160 HMAC
* refuse RSA keys shorter than 1024 bits
Distilled upstream log:
- OpenSSH 7.3
- --- Security
* sshd(8): Mitigate a potential denial-of-service attack
against the system's crypt(3) function via sshd(8). An
attacker could send very long passwords that would cause
excessive CPU use in crypt(3). sshd(8) now refuses to accept
password authentication requests of length greater than 1024
characters. Independently reported by Tomas Kuthan (Oracle),
Andres Rojas and Javier Nieto.
* sshd(8): Mitigate timing differences in password
authentication that could be used to discern valid from
invalid account names when long passwords were sent and
particular password hashing algorithms are in use on the
server. CVE-2016-6210, reported by EddieEzra.Harari at
verint.com
* ssh(1), sshd(8): Fix observable timing weakness in the CBC
padding oracle countermeasures. Reported by Jean Paul
Degabriele, Kenny Paterson, Torben Hansen and Martin
Albrecht. Note that CBC ciphers are disabled by default and
only included for legacy compatibility.
* ssh(1), sshd(8): Improve operation ordering of MAC
verification for Encrypt-then-MAC (EtM) mode transport MAC
algorithms to verify the MAC before decrypting any
ciphertext. This removes the possibility of timing
differences leaking facts about the plaintext, though no such
leakage has been observed. Reported by Jean Paul Degabriele,
Kenny Paterson, Torben Hansen and Martin Albrecht.
* sshd(8): (portable only) Ignore PAM environment vars when
UseLogin=yes. If PAM is configured to read user-specified
environment variables and UseLogin=yes in sshd_config, then a
hostile local user may attack /bin/login via LD_PRELOAD or
similar environment variables set via PAM. CVE-2015-8325,
found by Shayan Sadigh.
- --- New Features
* ssh(1): Add a ProxyJump option and corresponding -J
command-line flag to allow simplified indirection through a
one or more SSH bastions or "jump hosts".
* ssh(1): Add an IdentityAgent option to allow specifying
specific agent sockets instead of accepting one from the
environment.
* ssh(1): Allow ExitOnForwardFailure and ClearAllForwardings to
be optionally overridden when using ssh -W. bz#2577
* ssh(1), sshd(8): Implement support for the IUTF8 terminal
mode as per draft-sgtatham-secsh-iutf8-00.
* ssh(1), sshd(8): Add support for additional fixed
Diffie-Hellman 2K, 4K and 8K groups from
draft-ietf-curdle-ssh-kex-sha2-03.
* ssh-keygen(1), ssh(1), sshd(8): support SHA256 and SHA512 RSA
signatures in certificates;
* ssh(1): Add an Include directive for ssh_config(5) files.
* ssh(1): Permit UTF-8 characters in pre-authentication banners
sent from the server. bz#2058
- --- Bugfixes
* ssh(1), sshd(8): Reduce the syslog level of some relatively
common protocol events from LOG_CRIT. bz#2585
* sshd(8): Refuse AuthenticationMethods="" in configurations
and accept AuthenticationMethods=any for the default
behaviour of not requiring multiple authentication. bz#2398
* sshd(8): Remove obsolete and misleading "POSSIBLE BREAK-IN
ATTEMPT!" message when forward and reverse DNS don't match.
bz#2585
* ssh(1): Close ControlPersist background process stderr except
in debug mode or when logging to syslog. bz#1988
* misc: Make PROTOCOL description for
direct-streamlocal@openssh.com channel open messages match
deployed code. bz#2529
* ssh(1): Deduplicate LocalForward and RemoteForward entries to
fix failures when both ExitOnForwardFailure and hostname
canonicalisation are enabled. bz#2562
* sshd(8): Remove fallback from moduli to obsolete "primes"
file that was deprecated in 2001. bz#2559.
* sshd_config(5): Correct description of UseDNS: it affects ssh
hostname processing for authorized_keys, not known_hosts;
bz#2554
* ssh(1): Fix authentication using lone certificate keys in an
agent without corresponding private keys on the filesystem.
bz#2550
* sshd(8): Send ClientAliveInterval pings when a time-based
RekeyLimit is set; previously keepalive packets were not
being sent. bz#2252
- --- Portability
* ssh(1), sshd(8): Fix compilation by automatically disabling
ciphers not supported by OpenSSL. bz#2466
* misc: Fix compilation failures on some versions of AIX's
compiler related to the definition of the VA_COPY macro.
bz#2589
* sshd(8): Whitelist more architectures to enable the
seccomp-bpf sandbox. bz#2590
* ssh-agent(1), sftp-server(8): Disable process tracing on
Solaris using setpflags(__PROC_PROTECT, ...). bz#2584
* sshd(8): On Solaris, don't call Solaris setproject() with
UsePAM=yes it's PAM's responsibility. bz#2425
- OpenSSH 7.4
- --- Potentially-incompatible changes
* ssh(1): Remove 3des-cbc from the client's default proposal.
64-bit block ciphers are not safe in 2016 and we don't want
to wait until attacks like SWEET32 are extended to SSH. As
3des-cbc was the only mandatory cipher in the SSH RFCs, this
may cause problems connecting to older devices using the
default configuration, but it's highly likely that such
devices already need explicit configuration for key exchange
and hostkey algorithms already anyway.
* sshd(8): Remove support for pre-authentication compression.
Doing compression early in the protocol probably seemed
reasonable in the 1990s, but today it's clearly a bad idea in
terms of both cryptography (cf. multiple compression oracle
attacks in TLS) and attack surface. Pre-auth compression
support has been disabled by default for >10 years. Support
remains in the client.
* ssh-agent will refuse to load PKCS#11 modules outside a
whitelist of trusted paths by default. The path whitelist may
be specified at run-time.
* sshd(8): When a forced-command appears in both a certificate
and an authorized keys/principals command= restriction, sshd
will now refuse to accept the certificate unless they are
identical. The previous (documented) behaviour of having the
certificate forced-command override the other could be a bit
confusing and error-prone.
* sshd(8): Remove the UseLogin configuration directive and
support for having /bin/login manage login sessions.
- --- Security
* ssh-agent(1): Will now refuse to load PKCS#11 modules from
paths outside a trusted whitelist (run-time configurable).
Requests to load modules could be passed via agent forwarding
and an attacker could attempt to load a hostile PKCS#11
module across the forwarded agent channel: PKCS#11 modules
are shared libraries, so this would result in code execution
on the system running the ssh-agent if the attacker has
control of the forwarded agent-socket (on the host running
the sshd server) and the ability to write to the filesystem
of the host running ssh-agent (usually the host running the
ssh client). Reported by Jann Horn of Project Zero.
* sshd(8): When privilege separation is disabled, forwarded
Unix- domain sockets would be created by sshd(8) with the
privileges of 'root' instead of the authenticated user. This
release refuses Unix-domain socket forwarding when privilege
separation is disabled (Privilege separation has been enabled
by default for 14 years). Reported by Jann Horn of Project
Zero.
* sshd(8): Avoid theoretical leak of host private key material
to privilege-separated child processes via realloc() when
reading keys. No such leak was observed in practice for
normal-sized keys, nor does a leak to the child processes
directly expose key material to unprivileged users. Reported
by Jann Horn of Project Zero.
* sshd(8): The shared memory manager used by pre-authentication
compression support had a bounds checks that could be elided
by some optimising compilers. Additionally, this memory
manager was incorrectly accessible when pre-authentication
compression was disabled. This could potentially allow
attacks against the privileged monitor process from the
sandboxed privilege-separation process (a compromise of the
latter would be required first). This release removes
support for pre-authentication compression from sshd(8).
Reported by Guido Vranken using the Stack unstable
optimisation identification tool
(http://css.csail.mit.edu/stack/)
* sshd(8): Fix denial-of-service condition where an attacker
who sends multiple KEXINIT messages may consume up to 128MB
per connection. Reported by Shi Lei of Gear Team, Qihoo 360.
* sshd(8): Validate address ranges for AllowUser and DenyUsers
directives at configuration load time and refuse to accept
invalid ones. It was previously possible to specify invalid
CIDR address ranges (e.g. user@127.1.2.3/55) and these would
always match, possibly resulting in granting access where it
was not intended. Reported by Laurence Parry.
- --- New Features
* ssh(1): Add a proxy multiplexing mode to ssh(1) inspired by
the version in PuTTY by Simon Tatham. This allows a
multiplexing client to communicate with the master process
using a subset of the SSH packet and channels protocol over a
Unix-domain socket, with the main process acting as a proxy
that translates channel IDs, etc. This allows multiplexing
mode to run on systems that lack file- descriptor passing
(used by current multiplexing code) and potentially, in
conjunction with Unix-domain socket forwarding, with the
client and multiplexing master process on different machines.
Multiplexing proxy mode may be invoked using "ssh -O proxy
..."
* sshd(8): Add a sshd_config DisableForwarding option that
disables X11, agent, TCP, tunnel and Unix domain socket
forwarding, as well as anything else we might implement in
the future. Like the 'restrict' authorized_keys flag, this is
intended to be a simple and future-proof way of restricting
an account.
* sshd(8), ssh(1): Support the "curve25519-sha256" key exchange
method. This is identical to the currently-supported method
named "curve25519-sha256@libssh.org".
* sshd(8): Improve handling of SIGHUP by checking to see if
sshd is already daemonised at startup and skipping the call
to daemon(3) if it is. This ensures that a SIGHUP restart of
sshd(8) will retain the same process-ID as the initial
execution. sshd(8) will also now unlink the PidFile prior to
SIGHUP restart and re-create it after a successful restart,
rather than leaving a stale file in the case of a
configuration error. bz#2641
* sshd(8): Allow ClientAliveInterval and ClientAliveCountMax
directives to appear in sshd_config Match blocks.
* sshd(8): Add %-escapes to AuthorizedPrincipalsCommand to
match those supported by AuthorizedKeysCommand (key, key
type, fingerprint, etc.) and a few more to provide access to
the contents of the certificate being offered.
* Added regression tests for string matching, address matching
and string sanitisation functions.
* Improved the key exchange fuzzer harness.
- --- Bugfixes
* ssh(1): Allow IdentityFile to successfully load and use
certificates that have no corresponding bare public key.
bz#2617 certificate id_rsa-cert.pub (and no id_rsa.pub).
* ssh(1): Fix public key authentication when multiple
authentication is in use and publickey is not just the first
method attempted. bz#2642
* regress: Allow the PuTTY interop tests to run unattended.
bz#2639
* ssh-agent(1), ssh(1): improve reporting when attempting to
load keys from PKCS#11 tokens with fewer useless log messages
and more detail in debug messages. bz#2610
* ssh(1): When tearing down ControlMaster connections, don't
pollute stderr when LogLevel=quiet.
* sftp(1): On ^Z wait for underlying ssh(1) to suspend before
suspending sftp(1) to ensure that ssh(1) restores the
terminal mode correctly if suspended during a password
prompt.
* ssh(1): Avoid busy-wait when ssh(1) is suspended during a
password prompt.
* ssh(1), sshd(8): Correctly report errors during sending of
ext- info messages.
* sshd(8): fix NULL-deref crash if sshd(8) received an out-of-
sequence NEWKEYS message.
* sshd(8): Correct list of supported signature algorithms sent
in the server-sig-algs extension. bz#2547
* sshd(8): Fix sending ext_info message if privsep is disabled.
* sshd(8): more strictly enforce the expected ordering of
privilege separation monitor calls used for authentication
and allow them only when their respective authentication
methods are enabled in the configuration
* sshd(8): Fix uninitialised optlen in getsockopt() call;
harmless on Unix/BSD but potentially crashy on Cygwin.
* Fix false positive reports caused by explicit_bzero(3) not
being recognised as a memory initialiser when compiled with
- fsanitize-memory.
* sshd_config(5): Use 2001:db8::/32, the official IPv6 subnet
for configuration examples.
- --- Portability
* On environments configured with Turkish locales, fall back to
the C/POSIX locale to avoid errors in configuration parsing
caused by that locale's unique handling of the letters 'i'
and 'I'. bz#2643
* sftp-server(8), ssh-agent(1): Deny ptrace on OS X using
ptrace(PT_DENY_ATTACH, ..)
* ssh(1), sshd(8): Unbreak AES-CTR ciphers on old (~0.9.8)
OpenSSL.
* Fix compilation for libcrypto compiled without RIPEMD160
support.
* contrib: Add a gnome-ssh-askpass3 with GTK+3 support. bz#2640
* sshd(8): Improve PRNG reseeding across privilege separation
and force libcrypto to obtain a high-quality seed before
chroot or sandboxing.
* All: Explicitly test for broken strnvis. NetBSD added an
strnvis and unfortunately made it incompatible with the
existing one in OpenBSD and Linux's libbsd (the former having
existed for over ten years). Try to detect this mess, and
assume the only safe option if we're cross compiling.
- OpenSSH 7.5
- --- Potentially-incompatible changes
* This release deprecates the sshd_config
UsePrivilegeSeparation option, thereby making privilege
separation mandatory. Privilege separation has been on by
default for almost 15 years and sandboxing has been on by
default for almost the last five.
* The format of several log messages emitted by the packet code
has changed to include additional information about the user
and their authentication state. Software that monitors
ssh/sshd logs may need to account for these changes. For
example:
Connection closed by user x 1.1.1.1 port 1234 [preauth]
Connection closed by authenticating user x 10.1.1.1 port 1234
[preauth] Connection closed by invalid user x 1.1.1.1 port
1234 [preauth]
Affected messages include connection closure, timeout, remote
disconnection, negotiation failure and some other fatal
messages generated by the packet code.
* [Portable OpenSSH only] This version removes support for
building against OpenSSL versions prior to 1.0.1. OpenSSL
stopped supporting versions prior to 1.0.1 over 12 months ago
(i.e. they no longer receive fixes for security bugs).
- --- Security
* ssh(1), sshd(8): Fix weakness in CBC padding oracle
countermeasures that allowed a variant of the attack fixed in
OpenSSH 7.3 to proceed. Note that the OpenSSH client
disables CBC ciphers by default, sshd offers them as
lowest-preference options and will remove them by default
entriely in the next release. Reported by Jean Paul
Degabriele, Kenny Paterson, Martin Albrecht and Torben Hansen
of Royal Holloway, University of London.
* sftp-client(1): [portable OpenSSH only] On Cygwin, a client
making a recursive file transfer could be maniuplated by a
hostile server to perform a path-traversal attack. creating
or modifying files outside of the intended target directory.
Reported by Jann Horn of Google Project Zero.
- --- New Features
* ssh(1), sshd(8): Support "=-" syntax to easily remove methods
from algorithm lists, e.g. Ciphers=-*cbc. bz#2671
- --- Bugfixes
* sshd(1): Fix NULL dereference crash when key exchange start
messages are sent out of sequence.
* ssh(1), sshd(8): Allow form-feed characters to appear in
configuration files.
* sshd(8): Fix regression in OpenSSH 7.4 support for the
server-sig-algs extension, where SHA2 RSA signature methods
were not being correctly advertised. bz#2680
* ssh(1), ssh-keygen(1): Fix a number of case-sensitivity bugs
in known_hosts processing. bz#2591 bz#2685
* ssh(1): Allow ssh to use certificates accompanied by a
private key file but no corresponding plain *.pub public key.
bz#2617
* ssh(1): When updating hostkeys using the UpdateHostKeys
option, accept RSA keys if HostkeyAlgorithms contains any RSA
keytype. Previously, ssh could ignore RSA keys when only the
ssh-rsa-sha2-* methods were enabled in HostkeyAlgorithms and
not the old ssh-rsa method. bz#2650
* ssh(1): Detect and report excessively long configuration file
lines. bz#2651
* Merge a number of fixes found by Coverity and reported via
Redhat and FreeBSD. Includes fixes for some memory and file
descriptor leaks in error paths. bz#2687
* ssh-keyscan(1): Correctly hash hosts with a port number.
bz#2692
* ssh(1), sshd(8): When logging long messages to stderr, don't
truncate "\r\n" if the length of the message exceeds the
buffer. bz#2688
* ssh(1): Fully quote [host]:port in generated ProxyJump/-J
command- line; avoid confusion over IPv6 addresses and shells
that treat square bracket characters specially.
* ssh-keygen(1): Fix corruption of known_hosts when running
"ssh-keygen -H" on a known_hosts containing already-hashed
entries.
* Fix various fallout and sharp edges caused by removing SSH
protocol 1 support from the server, including the server
banner string being incorrectly terminated with only \n
(instead of \r\n), confusing error messages from ssh-keyscan
bz#2583 and a segfault in sshd if protocol v.1 was enabled
for the client and sshd_config contained references to legacy
keys bz#2686.
* ssh(1), sshd(8): Free fd_set on connection timeout. bz#2683
* sshd(8): Fix Unix domain socket forwarding for root
(regression in OpenSSH 7.4).
* sftp(1): Fix division by zero crash in "df" output when
server returns zero total filesystem blocks/inodes.
* ssh(1), ssh-add(1), ssh-keygen(1), sshd(8): Translate OpenSSL
errors encountered during key loading to more meaningful
error codes. bz#2522 bz#2523
* ssh-keygen(1): Sanitise escape sequences in key comments sent
to printf but preserve valid UTF-8 when the locale supports
it; bz#2520
* ssh(1), sshd(8): Return reason for port forwarding failures
where feasible rather than always "administratively
prohibited". bz#2674
* sshd(8): Fix deadlock when AuthorizedKeysCommand or
AuthorizedPrincipalsCommand produces a lot of output and a
key is matched early. bz#2655
* Regression tests: several reliability fixes. bz#2654 bz#2658
bz#2659
* ssh(1): Fix typo in ~C error message for bad port forward
cancellation. bz#2672
* ssh(1): Show a useful error message when included config
files can't be opened; bz#2653
* sshd(8): Make sshd set GSSAPIStrictAcceptorCheck=yes as the
manual page (previously incorrectly) advertised. bz#2637
* sshd_config(5): Repair accidentally-deleted mention of %k
token in AuthorizedKeysCommand; bz#2656
* sshd(8): Remove vestiges of previously removed LOGIN_PROGRAM;
bz#2665
* ssh-agent(1): Relax PKCS#11 whitelist to include libexec and
common 32-bit compatibility library directories.
* sftp-client(1): Fix non-exploitable integer overflow in
SSH2_FXP_NAME response handling.
* ssh-agent(1): Fix regression in 7.4 of deleting
PKCS#11-hosted keys. It was not possible to delete them
except by specifying their full physical path. bz#2682
- --- Portability
* sshd(8): Avoid sandbox errors for Linux S390 systems using an
ICA crypto coprocessor.
* sshd(8): Fix non-exploitable weakness in seccomp-bpf sandbox
arg inspection.
* ssh(1): Fix X11 forwarding on OSX where X11 was being started
by launchd. bz#2341
* ssh-keygen(1), ssh(1), sftp(1): Fix output truncation for
various that contain non-printable characters where the
codeset in use is ASCII.
* build: Fix builds that attempt to link a kerberised libldns.
bz#2603
* build: Fix compilation problems caused by unconditionally
defining _XOPEN_SOURCE in wide character detection.
* sshd(8): Fix sandbox violations for clock_gettime VSDO
syscall fallback on some Linux/X32 kernels. bz#2142
- OpenSSH 7.6
- --- Potentially-incompatible changes
This release includes a number of changes that may affect
existing configurations:
* ssh(1): delete SSH protocol version 1 support, associated
configuration options and documentation.
* ssh(1)/sshd(8): remove support for the hmac-ripemd160 MAC.
* ssh(1)/sshd(8): remove support for the arcfour, blowfish and
CAST ciphers.
* Refuse RSA keys <1024 bits in length and improve reporting
for keys that do not meet this requirement.
* ssh(1): do not offer CBC ciphers by default.
- --- Security
* sftp-server(8): in read-only mode, sftp-server was
incorrectly permitting creation of zero-length files.
Reported by Michal Zalewski.
- --- New Features
* ssh(1): add RemoteCommand option to specify a command in the
ssh config file instead of giving it on the client's command
line. This allows the configuration file to specify the
command that will be executed on the remote host.
* sshd(8): add ExposeAuthInfo option that enables writing
details of the authentication methods used (including public
keys where applicable) to a file that is exposed via a
$SSH_USER_AUTH environment variable in the subsequent
session.
* ssh(1): add support for reverse dynamic forwarding. In this
mode, ssh will act as a SOCKS4/5 proxy and forward
connections to destinations requested by the remote SOCKS
client. This mode is requested using extended syntax for the
- R and RemoteForward options and, because it is implemented
solely at the client, does not require the server be updated
to be supported.
* sshd(8): allow LogLevel directive in sshd_config Match
blocks; bz#2717
* ssh-keygen(1): allow inclusion of arbitrary string or flag
certificate extensions and critical options.
* ssh-keygen(1): allow ssh-keygen to use a key held in
ssh-agent as a CA when signing certificates. bz#2377
* ssh(1)/sshd(8): allow IPQoS=none in ssh/sshd to not set an
explicit ToS/DSCP value and just use the operating system
default.
* ssh-add(1): added -q option to make ssh-add quiet on success.
* ssh(1): expand the StrictHostKeyChecking option with two new
settings. The first "accept-new" will automatically accept
hitherto-unseen keys but will refuse connections for changed
or invalid hostkeys. This is a safer subset of the current
behaviour of StrictHostKeyChecking=no. The second setting
"off", is a synonym for the current behaviour of
StrictHostKeyChecking=no: accept new host keys, and continue
connection for hosts with incorrect hostkeys. A future
release will change the meaning of StrictHostKeyChecking=no
to the behaviour of "accept-new". bz#2400
* ssh(1): add SyslogFacility option to ssh(1) matching the
equivalent option in sshd(8). bz#2705
- --- Bugfixes
* ssh(1): use HostKeyAlias if specified instead of hostname for
matching host certificate principal names; bz#2728
* sftp(1): implement sorting for globbed ls; bz#2649
* ssh(1): add a user@host prefix to client's "Permission
denied" messages, useful in particular when using "stacked"
connections (e.g. ssh -J) where it's not clear which host is
denying. bz#2720
* ssh(1): accept unknown EXT_INFO extension values that contain
\0 characters. These are legal, but would previously cause
fatal connection errors if received.
* ssh(1)/sshd(8): repair compression statistics printed at
connection exit
* sftp(1): print '?' instead of incorrect link count (that the
protocol doesn't provide) for remote listings. bz#2710
* ssh(1): return failure rather than fatal() for more cases
during session multiplexing negotiations. Causes the session
to fall back to a non-mux connection if they occur. bz#2707
* ssh(1): mention that the server may send debug messages to
explain public key authentication problems under some
circumstances; bz#2709
* Translate OpenSSL error codes to better report incorrect
passphrase errors when loading private keys; bz#2699
* sshd(8): adjust compatibility patterns for WinSCP to
correctly identify versions that implement only the legacy DH
group exchange scheme. bz#2748
* ssh(1): print the "Killed by signal 1" message only at
LogLevel verbose so that it is not shown at the default
level; prevents it from appearing during ssh -J and
equivalent ProxyCommand configs. bz#1906, bz#2744
* ssh-keygen(1): when generating all hostkeys (ssh-keygen -A),
clobber existing keys if they exist but are zero length.
zero-length keys could previously be made if ssh-keygen
failed or was interrupted part way through generating them.
bz#2561
* ssh(1): fix pledge(2) violation in the escape sequence "~&"
used to place the current session in the background.
* ssh-keyscan(1): avoid double-close() on file descriptors;
bz#2734
* sshd(8): avoid reliance on shared use of pointers shared
between monitor and child sshd processes. bz#2704
* sshd_config(8): document available AuthenticationMethods;
bz#2453
* ssh(1): avoid truncation in some login prompts; bz#2768
* sshd(8): Fix various compilations failures, inc bz#2767
* ssh(1): make "--" before the hostname terminate argument
processing after the hostname too.
* ssh-keygen(1): switch from aes256-cbc to aes256-ctr for
encrypting new-style private keys. Fixes problems related to
private key handling for no-OpenSSL builds. bz#2754
* ssh(1): warn and do not attempt to use keys when the public
and private halves do not match. bz#2737
* sftp(1): don't print verbose error message when ssh
disconnects from under sftp. bz#2750
* sshd(8): fix keepalive scheduling problem: activity on a
forwarded port from preventing the keepalive from being sent;
bz#2756
* sshd(8): when started without root privileges, don't require
the privilege separation user or path to exist. Makes running
the regression tests easier without touching the filesystem.
* Make integrity.sh regression tests more robust against
timeouts. bz#2658
* ssh(1)/sshd(8): correctness fix for channels implementation:
accept channel IDs greater than 0x7FFFFFFF.
- --- Portability
* sshd(9): drop two more privileges in the Solaris sandbox:
PRIV_DAX_ACCESS and PRIV_SYS_IB_INFO; bz#2723
* sshd(8): expose list of completed authentication methods to
PAM via the SSH_AUTH_INFO_0 PAM environment variable. bz#2408
* ssh(1)/sshd(8): fix several problems in the tun/tap
forwarding code, mostly to do with host/network byte order
confusion. bz#2735
* Add --with-cflags-after and --with-ldflags-after configure
flags to allow setting CFLAGS/LDFLAGS after configure has
completed. These are useful for setting sanitiser/fuzzing
options that may interfere with configure's operation.
* sshd(8): avoid Linux seccomp violations on ppc64le over the
socketcall syscall.
* Fix use of ldns when using ldns-config; bz#2697
* configure: set cache variables when cross-compiling. The
cross- compiling fallback message was saying it assumed the
test passed, but it wasn't actually set the cache variables
and this would cause later tests to fail.
* Add clang libFuzzer harnesses for public key parsing and
signature verification.
- packaging:
* moving patches into a separate archive
* first round of rebased patches:
[-X11_trusted_forwarding]
[-allow_root_password_login]
[-blocksigalrm]
[-cavstest-ctr]
[-cavstest-kdf]
[-disable_short_DH_parameters]
[-eal3]
[-enable_PAM_by_default]
[-fips]
[-fips_checks]
[-gssapi_key_exchange]
[-hostname_changes_when_forwarding_X]
[-lastlog]
[-missing_headers]
[-pam_check_locks]
[-pts_names_formatting]
[-remove_xauth_cookies_on_exit]
[-seccomp_geteuid]
[-seccomp_getuid]
[-seccomp_stat]
[-seed-prng]
[-send_locale]
[-systemd-notify]
* not rebased (obsoleted) patches (so far):
[-additional_seccomp_archs]
[-allow_DSS_by_default]
[-default_protocol]
[-dont_use_pthreads_in_PAM]
[-eal3_obsolete]
[-gssapimitm]
[-saveargv-fix]
* obviously removing all standalone patch files:
[openssh-7.2p2-allow_root_password_login.patch]
[openssh-7.2p2-allow_DSS_by_default.patch]
[openssh-7.2p2-X11_trusted_forwarding.patch]
[openssh-7.2p2-lastlog.patch]
[openssh-7.2p2-enable_PAM_by_default.patch]
[openssh-7.2p2-dont_use_pthreads_in_PAM.patch]
[openssh-7.2p2-eal3.patch]
[openssh-7.2p2-blocksigalrm.patch]
[openssh-7.2p2-send_locale.patch]
[openssh-7.2p2-hostname_changes_when_forwarding_X.patch]
[openssh-7.2p2-remove_xauth_cookies_on_exit.patch]
[openssh-7.2p2-pts_names_formatting.patch]
[openssh-7.2p2-pam_check_locks.patch]
[openssh-7.2p2-disable_short_DH_parameters.patch]
[openssh-7.2p2-seccomp_getuid.patch]
[openssh-7.2p2-seccomp_geteuid.patch]
[openssh-7.2p2-seccomp_stat.patch]
[openssh-7.2p2-additional_seccomp_archs.patch]
[openssh-7.2p2-fips.patch]
[openssh-7.2p2-cavstest-ctr.patch]
[openssh-7.2p2-cavstest-kdf.patch]
[openssh-7.2p2-seed-prng.patch]
[openssh-7.2p2-gssapi_key_exchange.patch]
[openssh-7.2p2-audit.patch]
[openssh-7.2p2-audit_fixes.patch]
[openssh-7.2p2-audit_seed_prng.patch]
[openssh-7.2p2-login_options.patch]
[openssh-7.2p2-disable_openssl_abi_check.patch]
[openssh-7.2p2-no_fork-no_pid_file.patch]
[openssh-7.2p2-host_ident.patch]
[openssh-7.2p2-sftp_homechroot.patch]
[openssh-7.2p2-sftp_force_permissions.patch]
[openssh-7.2p2-X_forward_with_disabled_ipv6.patch]
[openssh-7.2p2-ldap.patch]
[openssh-7.2p2-IPv6_X_forwarding.patch]
[openssh-7.2p2-ignore_PAM_with_UseLogin.patch]
[openssh-7.2p2-prevent_timing_user_enumeration.patch]
[openssh-7.2p2-limit_password_length.patch]
[openssh-7.2p2-keep_slogin.patch]
[openssh-7.2p2-kex_resource_depletion.patch]
[openssh-7.2p2-verify_CIDR_address_ranges.patch]
[openssh-7.2p2-restrict_pkcs11-modules.patch]
[openssh-7.2p2-prevent_private_key_leakage.patch]
[openssh-7.2p2-secure_unix_sockets_forwarding.patch]
[openssh-7.2p2-ssh_case_insensitive_host_matching.patch]
[openssh-7.2p2-disable_preauth_compression.patch]
[openssh-7.2p2-s390_hw_crypto_syscalls.patch]
[openssh-7.2p2-s390_OpenSSL-ibmpkcs11_syscalls.patch]
- Replace references to /var/adm/fillup-templates with new
%_fillupdir macro (boo#1069468)
- sshd_config is has now permissions 0600 in secure mode
- Fix preauth seccomp separation on mainframes (bsc#1016709)
[openssh-7.2p2-s390_hw_crypto_syscalls.patch]
[openssh-7.2p2-s390_OpenSSL-ibmpkcs11_syscalls.patch]
- enable case-insensitive hostname matching (bsc#1017099)
[openssh-7.2p2-ssh_case_insensitive_host_matching.patch]
- add CAVS tests
[openssh-7.2p2-cavstest-ctr.patch]
[openssh-7.2p2-cavstest-kdf.patch]
- Adding missing pieces for user matching (bsc#1021626)
- Properly verify CIDR masks in configuration
(bsc#1005893)
[openssh-7.2p2-verify_CIDR_address_ranges.patch]
- Remove pre-auth compression support from the server to prevent
possible cryptographic attacks.
(CVE-2016-10012, bsc#1016370)
[openssh-7.2p2-disable_preauth_compression.patch]
- limit directories for loading PKCS11 modules
(CVE-2016-10009, bsc#1016366)
[openssh-7.2p2-restrict_pkcs11-modules.patch]
- Prevent possible leaks of host private keys to low-privilege
process handling authentication
(CVE-2016-10011, bsc#1016369)
[openssh-7.2p2-prevent_private_key_leakage.patch]
- Do not allow unix socket forwarding when running without
privilege separation
(CVE-2016-10010, bsc#1016368)
[openssh-7.2p2-secure_unix_sockets_forwarding.patch]
- prevent resource depletion during key exchange
(bsc#1005480, CVE-2016-8858)
[openssh-7.2p2-kex_resource_depletion.patch]
- fix suggested command for removing conflicting server keys from
the known_hosts file (bsc#1006221)
- enable geteuid{,32} syscalls on mainframes, since it may be
called from libica/ibmica on machines with hardware crypto
accelerator (bsc#1004258)
[openssh-7.2p2-seccomp_geteuid.patch]
- fix regression of (bsc#823710)
[openssh-7.2p2-audit_fixes.patch]
- add slogin (removed upstreams)
[openssh-7.2p2-keep_slogin.patch]
- require OpenSSL < 1.1 where that one is a default
- sshd.service: Set TasksMax=infinity, as there should be
no limit on the amount of tasks sshd can run.
- remaining patches that were still missing
since the update to 7.2p2 (FATE#319675):
- allow X forwarding over IPv4 when IPv6 sockets is not available
[openssh-7.2p2-X_forward_with_disabled_ipv6.patch]
- do not write PID file when not daemonizing
[openssh-7.2p2-no_fork-no_pid_file.patch]
- use correct options when invoking login
[openssh-7.2p2-login_options.patch]
- helper application for retrieving users' public keys from
an LDAP server
[openssh-7.2p2-ldap.patch]
- allow forcing permissions over sftp
[openssh-7.2p2-sftp_force_permissions.patch]
- do not perform run-time checks for OpenSSL API/ABI change
[openssh-7.2p2-disable_openssl_abi_check.patch]
- suggest commands for cleaning known hosts file
[openssh-7.2p2-host_ident.patch]
- sftp home chroot patch
[openssh-7.2p2-sftp_homechroot.patch]
- ssh sessions auditing
[openssh-7.2p2-audit.patch]
- enable seccomp sandbox on additional architectures
[openssh-7.2p2-additional_seccomp_archs.patch]
- fix forwarding with IPv6 addresses in DISPLAY (bnc#847710)
[openssh-7.2p2-IPv6_X_forwarding.patch]
- ignore PAM environment when using login
(bsc#975865, CVE-2015-8325)
[openssh-7.2p2-ignore_PAM_with_UseLogin.patch]
- limit accepted password length (prevents possible DoS)
(bsc#992533, CVE-2016-6515)
[openssh-7.2p2-limit_password_length.patch]
- Prevent user enumeration through the timing of password
processing (bsc#989363, CVE-2016-6210)
[openssh-7.2p2-prevent_timing_user_enumeration.patch]
- Add auditing for PRNG re-seeding
[openssh-7.2p2-audit_seed_prng.patch]
- FIPS compatibility (no selfchecks, only crypto restrictions)
[openssh-7.2p2-fips.patch]
- PRNG re-seeding
[openssh-7.2p2-seed-prng.patch]
- preliminary version of GSSAPI KEX
[openssh-7.2p2-gssapi_key_exchange.patch]
- added gpg signature
- enable support for SSHv1 protocol and discourage its usage
(bsc#983307)
- enable DSA by default for backward compatibility and discourage
its usage (bsc#983784)
[openssh-7.2p2-allow_DSS_by_default.patch]
- enable trusted X11 forwarding by default
[openssh-7.2p2-X11_trusted_forwarding.patch]
- set UID for lastlog properly
[openssh-7.2p2-lastlog.patch]
- enable use of PAM by default
[openssh-7.2p2-enable_PAM_by_default.patch]
- copy command line arguments properly
[openssh-7.2p2-saveargv-fix.patch]
- do not use pthreads in PAM code
[openssh-7.2p2-dont_use_pthreads_in_PAM.patch]
- fix paths in documentation
[openssh-7.2p2-eal3.patch]
- prevent race consitions triggered by SIGALRM
[openssh-7.2p2-blocksigalrm.patch]
- do send and accept locale environment variables by default
[openssh-7.2p2-send_locale.patch]
- handle hostnames changes during X forwarding
[openssh-7.2p2-hostname_changes_when_forwarding_X.patch]
- try to remove xauth cookies on exit
[openssh-7.2p2-remove_xauth_cookies_on_exit.patch]
- properly format pts names for ?tmp? log files
[openssh-7.2p2-pts_names_formatting.patch]
- check locked accounts when using PAM
[openssh-7.2p2-pam_check_locks.patch]
- chenge default PermitRootLogin to 'yes' to prevent unwanted
surprises on updates from older versions.
See README.SUSE for details
[openssh-7.2p2-allow_root_password_login.patch]
- Disable DH parameters under 2048 bits by default and allow
lowering the limit back to the RFC 4419 specified minimum
through an option (bsc#932483, bsc#948902)
[openssh-7.2p2-disable_short_DH_parameters.patch]
- Add getuid() and stat() syscalls to the seccomp filter
(bsc#912436)
[openssh-7.2p2-seccomp_getuid.patch,
openssh-7.2p2-seccomp_stat.patch]
- upgrade to 7.2p2
upstream package without any SUSE patches
Distilled upstream log:
- OpenSSH 6.7
Potentially-incompatible changes:
* sshd(8): The default set of ciphers and MACs has been
altered to remove unsafe algorithms. In particular, CBC
ciphers and arcfour* are disabled by default.
The full set of algorithms remains available if configured
explicitly via the Ciphers and MACs sshd_config options.
* sshd(8): Support for tcpwrappers/libwrap has been removed.
* OpenSSH 6.5 and 6.6 have a bug that causes ~0.2% of
connections using the curve25519-sha256@libssh.org KEX
exchange method to fail when connecting with something that
implements the specification correctly. OpenSSH 6.7 disables
this KEX method when speaking to one of the affected
versions.
New Features:
* ssh(1), sshd(8): Add support for Unix domain socket
forwarding. A remote TCP port may be forwarded to a local
Unix domain socket and vice versa or both ends may be a Unix
domain socket.
* ssh(1), ssh-keygen(1): Add support for SSHFP DNS records for
ED25519 key types.
* sftp(1): Allow resumption of interrupted uploads.
* ssh(1): When rekeying, skip file/DNS lookups of the hostkey
if it is the same as the one sent during initial key exchange
* sshd(8): Allow explicit ::1 and 127.0.0.1 forwarding bind
addresses when GatewayPorts=no; allows client to choose
address family
* sshd(8): Add a sshd_config PermitUserRC option to control
whether ~/.ssh/rc is executed, mirroring the no-user-rc
authorized_keys option
* ssh(1): Add a %C escape sequence for LocalCommand and
ControlPath that expands to a unique identifer based on a
hash of the tuple of (local host, remote user, hostname,
port). Helps avoid exceeding miserly pathname limits for Unix
domain sockets in multiplexing control paths
* sshd(8): Make the "Too many authentication failures" message
include the user, source address, port and protocol in a
format similar to the authentication success / failure
messages
Bugfixes:
* sshd(8): Fix remote forwarding with the same listen port but
different listen address.
* ssh(1): Fix inverted test that caused PKCS#11 keys that were
explicitly listed in ssh_config or on the commandline not to
be preferred.
* ssh-keygen(1): Fix bug in KRL generation: multiple
consecutive revoked certificate serial number ranges could be
serialised to an invalid format. Readers of a broken KRL
caused by this bug will fail closed, so no
should-have-been-revoked key will be accepted.
* ssh(1): Reflect stdio-forward ("ssh -W host:port ...")
failures in exit status. Previously we were always returning 0
* ssh(1), ssh-keygen(1): Make Ed25519 keys' title fit properly
in the randomart border
* ssh-agent(1): Only cleanup agent socket in the main agent
process and not in any subprocesses it may have started (e.g.
forked askpass). Fixes agent sockets being zapped when
askpass processes fatal()
* ssh-add(1): Make stdout line-buffered; saves partial output
getting lost when ssh-add fatal()s part-way through (e.g.
when listing keys from an agent that supports key types that
ssh-add doesn't)
* ssh-keygen(1): When hashing or removing hosts, don't choke on
@revoked markers and don't remove @cert-authority markers
* ssh(1): Don't fatal when hostname canonicalisation fails and
a ProxyCommand is in use; continue and allow the ProxyCommand
to connect anyway (e.g. to a host with a name outside the DNS
behind a bastion)
* scp(1): When copying local->remote fails during read, don't
send uninitialised heap to the remote end.
* sftp(1): Fix fatal "el_insertstr failed" errors when
tab-completing filenames with a single quote char somewhere
in the string
* ssh-keyscan(1): Scan for Ed25519 keys by default.
* ssh(1): When using VerifyHostKeyDNS with a DNSSEC resolver,
down-convert any certificate keys to plain keys and attempt
SSHFP resolution. Prevents a server from skipping SSHFP
lookup and forcing a new-hostkey dialog by offering only
certificate keys.
- OpenSSH 6.8
Potentially-incompatible changes:
* sshd(8): UseDNS now defaults to 'no'. Configurations that
match against the client host name (via sshd_config or
authorized_keys) may need to re-enable it or convert to
matching against addresses.
New Features:
* Add FingerprintHash option to ssh(1) and sshd(8), and
equivalent command-line flags to the other tools to control
algorithm used for key fingerprints. The default changes from
MD5 to SHA256 and format from hex to base64.
Fingerprints now have the hash algorithm prepended. An
example of the new format:
SHA256:mVPwvezndPv/ARoIadVY98vAC0g+P/5633yTC4d/wXE Please
note that visual host keys will also be different.
* ssh(1), sshd(8): Experimental host key rotation support. Add
a protocol extension for a server to inform a client of all
its available host keys after authentication has completed.
The client may record the keys in known_hosts, allowing it to
upgrade to better host key algorithms and a server to
gracefully rotate its keys.
The client side of this is controlled by a UpdateHostkeys
config option (default off).
* ssh(1): Add a ssh_config HostbasedKeyType option to control
which host public key types are tried during host-based
authentication.
* ssh(1), sshd(8): fix connection-killing host key mismatch
errors when sshd offers multiple ECDSA keys of different
lengths.
* ssh(1): when host name canonicalisation is enabled, try to
parse host names as addresses before looking them up for
canonicalisation. fixes bz#2074 and avoiding needless DNS
lookups in some cases.
* ssh-keygen(1), sshd(8): Key Revocation Lists (KRLs) no longer
require OpenSSH to be compiled with OpenSSL support.
* ssh(1), ssh-keysign(8): Make ed25519 keys work for host based
authentication.
* sshd(8): SSH protocol v.1 workaround for the Meyer, et al,
Bleichenbacher Side Channel Attack. Fake up a bignum key
before RSA decryption.
* sshd(8): Remember which public keys have been used for
authentication and refuse to accept previously-used keys.
This allows AuthenticationMethods=publickey,publickey to
require that users authenticate using two _different_ public
keys.
* sshd(8): add sshd_config HostbasedAcceptedKeyTypes and
PubkeyAcceptedKeyTypes options to allow sshd to control what
public key types will be accepted. Currently defaults to all.
* sshd(8): Don't count partial authentication success as a
failure against MaxAuthTries.
* ssh(1): Add RevokedHostKeys option for the client to allow
text-file or KRL-based revocation of host keys.
* ssh-keygen(1), sshd(8): Permit KRLs that revoke certificates
by serial number or key ID without scoping to a particular
CA.
* ssh(1): Add a "Match canonical" criteria that allows
ssh_config Match blocks to trigger only in the second config
pass.
* ssh(1): Add a -G option to ssh that causes it to parse its
configuration and dump the result to stdout, similar to
"sshd -T".
* ssh(1): Allow Match criteria to be negated.
E.g. "Match !host".
* The regression test suite has been extended to cover more
OpenSSH features. The unit tests have been expanded and now
cover key exchange.
Bugfixes:
* ssh-keyscan(1): ssh-keyscan has been made much more robust
again servers that hang or violate the SSH protocol.
* ssh(1), ssh-keygen(1): Fix regression: Key path names were
being lost as comment fields.
* ssh(1): Allow ssh_config Port options set in the second
config parse phase to be applied (they were being ignored).
* ssh(1): Tweak config re-parsing with host canonicalisation - make
the second pass through the config files always run when host name
canonicalisation is enabled (and not whenever the host name
changes)
* ssh(1): Fix passing of wildcard forward bind addresses when
connection multiplexing is in use
* ssh-keygen(1): Fix broken private key conversion from
non-OpenSSH formats.
* ssh-keygen(1): Fix KRL generation bug when multiple CAs are
in use.
* Various fixes to manual pages
- OpenSSH 6.9
Security:
* ssh(1): when forwarding X11 connections with
ForwardX11Trusted=no, connections made after
ForwardX11Timeout expired could be permitted and no longer
subject to XSECURITY restrictions because of an ineffective
timeout check in ssh(1) coupled with "fail open" behaviour in
the X11 server when clients attempted connections with
expired credentials. This problem was reported by Jann Horn.
* ssh-agent(1): fix weakness of agent locking (ssh-add -x) to
password guessing by implementing an increasing failure
delay, storing a salted hash of the password rather than the
password itself and using a timing-safe comparison function
for verifying unlock attempts. This problem was reported by
Ryan Castellucci.
New Features:
* ssh(1), sshd(8): promote chacha20-poly1305@openssh.com to be
the default cipher
* sshd(8): support admin-specified arguments to
AuthorizedKeysCommand
* sshd(8): add AuthorizedPrincipalsCommand that allows
retrieving authorized principals information from a
subprocess rather than a file.
* ssh(1), ssh-add(1): support PKCS#11 devices with external PIN
entry devices
* sshd(8): allow GSSAPI host credential check to be relaxed for
multihomed hosts via GSSAPIStrictAcceptorCheck option
* ssh-keygen(1): support "ssh-keygen -lF hostname" to search
known_hosts and print key hashes rather than full keys.
* ssh-agent(1): add -D flag to leave ssh-agent in foreground
without enabling debug mode
Bugfixes:
* ssh(1), sshd(8): deprecate legacy
SSH2_MSG_KEX_DH_GEX_REQUEST_OLD message and do not try to use
it against some 3rd-party SSH implementations that use it
(older PuTTY, WinSCP).
* Many fixes for problems caused by compile-time deactivation
of SSH1 support (including bz#2369)
* ssh(1), sshd(8): cap DH-GEX group size at 4Kbits for Cisco
implementations as some would fail when attempting to use
group sizes >4K
* ssh(1): fix out-of-bound read in EscapeChar configuration
option parsing
* sshd(8): fix application of PermitTunnel, LoginGraceTime,
AuthenticationMethods and StreamLocalBindMask options in
Match blocks
* ssh(1), sshd(8): improve disconnection message on TCP reset;
bz#2257
* ssh(1): remove failed remote forwards established by
muliplexing from the list of active forwards
* sshd(8): make parsing of authorized_keys "environment="
options independent of PermitUserEnv being enabled
* sshd(8): fix post-auth crash with permitopen=none
* ssh(1), ssh-add(1), ssh-keygen(1): allow new-format private
keys to be encrypted with AEAD ciphers
* ssh(1): allow ListenAddress, Port and AddressFamily
configuration options to appear in any order
* sshd(8): check for and reject missing arguments for
VersionAddendum and ForceCommand
* ssh(1), sshd(8): don't treat unknown certificate extensions
as fatal
* ssh-keygen(1): make stdout and stderr output consistent
* ssh(1): mention missing DISPLAY environment in debug log when
X11 forwarding requested
* sshd(8): correctly record login when UseLogin is set
* sshd(8): Add some missing options to sshd -T output and fix
output of VersionAddendum and HostCertificate. bz#2346
* Document and improve consistency of options that accept a
"none" argument" TrustedUserCAKeys, RevokedKeys (bz#2382),
AuthorizedPrincipalsFile (bz#2288)
* ssh(1): include remote username in debug output
* sshd(8): avoid compatibility problem with some versions of
Tera Term, which would crash when they received the hostkeys
notification message (hostkeys-00@openssh.com)
* sshd(8): mention ssh-keygen -E as useful when comparing
legacy MD5 host key fingerprints
* ssh(1): clarify pseudo-terminal request behaviour and use
make manual language consistent
* ssh(1): document that the TERM environment variable is not
subject to SendEnv and AcceptEnv
- OpenSSH 7.0:
This focuses primarily on deprecating weak, legacy and/or
unsafe cryptography.
Security:
* sshd(8): OpenSSH 6.8 and 6.9 incorrectly set TTYs to be
world- writable. Local attackers may be able to write
arbitrary messages to logged-in users, including terminal
escape sequences. Reported by Nikolay Edigaryev.
* sshd(8): Portable OpenSSH only: Fixed a privilege separation
weakness related to PAM support. Attackers who could
successfully compromise the pre-authentication process for
remote code execution and who had valid credentials on the
host could impersonate other users. Reported by Moritz
Jodeit.
* sshd(8): Portable OpenSSH only: Fixed a use-after-free bug
related to PAM support that was reachable by attackers who
could compromise the pre-authentication process for remote
code execution. Also reported by Moritz Jodeit.
* sshd(8): fix circumvention of MaxAuthTries using keyboard-
interactive authentication. By specifying a long, repeating
keyboard-interactive "devices" string, an attacker could
request the same authentication method be tried thousands of
times in a single pass. The LoginGraceTime timeout in sshd(8)
and any authentication failure delays implemented by the
authentication mechanism itself were still applied. Found by
Kingcope.
Potentially-incompatible Changes:
* Support for the legacy SSH version 1 protocol is disabled by
default at compile time.
* Support for the 1024-bit diffie-hellman-group1-sha1 key
exchange is disabled by default at run-time. It may be
re-enabled using the instructions in README.legacy or
http://www.openssh.com/legacy.html
* Support for ssh-dss, ssh-dss-cert-* host and user keys is
disabled by default at run-time. These may be re-enabled
using the instructions at http://www.openssh.com/legacy.html
* Support for the legacy v00 cert format has been removed.
* The default for the sshd_config(5) PermitRootLogin option has
changed from "yes" to "prohibit-password".
* PermitRootLogin=without-password/prohibit-password now bans
all interactive authentication methods, allowing only
public-key, hostbased and GSSAPI authentication (previously
it permitted keyboard-interactive and password-less
authentication if those were enabled).
New Features:
* ssh_config(5): add PubkeyAcceptedKeyTypes option to control
which public key types are available for user authentication.
* sshd_config(5): add HostKeyAlgorithms option to control which
public key types are offered for host authentications.
* ssh(1), sshd(8): extend Ciphers, MACs, KexAlgorithms,
HostKeyAlgorithms, PubkeyAcceptedKeyTypes and
HostbasedKeyTypes options to allow appending to the default
set of algorithms instead of replacing it. Options may now be
prefixed with a '+' to append to the default, e.g.
"HostKeyAlgorithms=+ssh-dss".
* sshd_config(5): PermitRootLogin now accepts an argument of
'prohibit-password' as a less-ambiguous synonym of 'without-
password'.
Bugfixes:
* ssh(1), sshd(8): add compatability workarounds for Cisco and
more PuTTY versions.
* Fix some omissions and errors in the PROTOCOL and
PROTOCOL.mux documentation relating to Unix domain socket
forwarding
* ssh(1): Improve the ssh(1) manual page to include a better
description of Unix domain socket forwarding
* ssh(1), ssh-agent(1): skip uninitialised PKCS#11 slots,
fixing failures to load keys when they are present.
* ssh(1), ssh-agent(1): do not ignore PKCS#11 hosted keys that
wth empty CKA_ID
* sshd(8): clarify documentation for UseDNS option
- OpenSSH 7.1:
Security:
* sshd(8): OpenSSH 7.0 contained a logic error in
PermitRootLogin= prohibit-password/without-password that
could, depending on compile-time configuration, permit
password authentication to root while preventing other forms
of authentication. This problem was reported by Mantas
Mikulenas.
Bugfixes:
* ssh(1), sshd(8): add compatability workarounds for FuTTY
* ssh(1), sshd(8): refine compatability workarounds for WinSCP
* Fix a number of memory faults (double-free, free of
uninitialised memory, etc) in ssh(1) and ssh-keygen(1).
Reported by Mateusz Kocielski.
- OpenSSH 7.1p2:
* SECURITY: ssh(1): The OpenSSH client code between 5.4 and 7.1
contains experimential support for resuming SSH-connections
(roaming).
The matching server code has never been shipped, but the
client code was enabled by default and could be tricked by a
malicious server into leaking client memory to the server,
including private client user keys.
The authentication of the server host key prevents
exploitation by a man-in-the-middle, so this information leak
is restricted to connections to malicious or compromised
servers.
MITIGATION: For OpenSSH >= 5.4 the vulnerable code in the
client can be completely disabled by adding 'UseRoaming no'
to the gobal ssh_config(5) file, or to user configuration in
~/.ssh/config, or by passing -oUseRoaming=no on the command
line.
PATCH: See below for a patch to disable this feature
(Disabling Roaming in the Source Code).
This problem was reported by the Qualys Security Advisory
team.
* SECURITY: Eliminate the fallback from untrusted
X11-forwarding to trusted forwarding for cases when the X
server disables the SECURITY extension. Reported by Thomas
Hoger.
* SECURITY: Fix an out of-bound read access in the packet
handling code. Reported by Ben Hawkes.
* PROTOCOL: Correctly interpret the 'first_kex_follows' option
during the intial key exchange. Reported by Matt Johnston.
* Further use of explicit_bzero has been added in various
buffer handling code paths to guard against compilers
aggressively doing dead-store removal.
Potentially-incompatible changes:
* This release disables a number of legacy cryptographic
algorithms by default in ssh:
+ Several ciphers blowfish-cbc, cast128-cbc, all arcfour
variants and the rijndael-cbc aliases for AES.
+ MD5-based and truncated HMAC algorithms.
- OpenSSH 7.2:
Security:
* ssh(1), sshd(8): remove unfinished and unused roaming code
(was already forcibly disabled in OpenSSH 7.1p2).
* ssh(1): eliminate fallback from untrusted X11 forwarding to
trusted forwarding when the X server disables the SECURITY
extension.
* ssh(1), sshd(8): increase the minimum modulus size supported
for diffie-hellman-group-exchange to 2048 bits.
* sshd(8): pre-auth sandboxing is now enabled by default
(previous releases enabled it for new installations via
sshd_config).
New Features:
* all: add support for RSA signatures using SHA-256/512 hash
algorithms based on draft-rsa-dsa-sha2-256-03.txt and
draft-ssh-ext-info-04.txt.
* ssh(1): Add an AddKeysToAgent client option which can be set
to 'yes', 'no', 'ask', or 'confirm', and defaults to 'no'.
When enabled, a private key that is used during
authentication will be added to ssh-agent if it is running
(with confirmation enabled if set to 'confirm').
* sshd(8): add a new authorized_keys option "restrict" that
includes all current and future key restrictions
(no-*-forwarding, etc.). Also add permissive versions of the
existing restrictions, e.g. "no-pty" -> "pty". This
simplifies the task of setting up restricted keys and ensures
they are maximally-restricted, regardless of any permissions
we might implement in the future.
* ssh(1): add ssh_config CertificateFile option to explicitly
list certificates. bz#2436
* ssh-keygen(1): allow ssh-keygen to change the key comment for
all supported formats.
* ssh-keygen(1): allow fingerprinting from standard input, e.g.
"ssh-keygen -lf -"
* ssh-keygen(1): allow fingerprinting multiple public keys in a
file, e.g. "ssh-keygen -lf ~/.ssh/authorized_keys" bz#1319
* sshd(8): support "none" as an argument for sshd_config
Foreground and ChrootDirectory. Useful inside Match blocks to
override a global default. bz#2486
* ssh-keygen(1): support multiple certificates (one per line)
and reading from standard input (using "-f -") for
"ssh-keygen -L"
* ssh-keyscan(1): add "ssh-keyscan -c ..." flag to allow
fetching certificates instead of plain keys.
* ssh(1): better handle anchored FQDNs (e.g. 'cvs.openbsd.org')
in hostname canonicalisation - treat them as already
canonical and remove the trailing '.' before matching
ssh_config.
Bugfixes:
* sftp(1): existing destination directories should not
terminate recursive uploads (regression in openssh 6.8)
* ssh(1), sshd(8): correctly send back SSH2_MSG_UNIMPLEMENTED
replies to unexpected messages during key exchange.
* ssh(1): refuse attempts to set ConnectionAttempts=0, which
does not make sense and would cause ssh to print an
uninitialised stack variable.
* ssh(1): fix errors when attempting to connect to scoped IPv6
addresses with hostname canonicalisation enabled.
* sshd_config(5): list a couple more options usable in Match
blocks.
* sshd(8): fix "PubkeyAcceptedKeyTypes +..." inside a Match
block.
* ssh(1): expand tilde characters in filenames passed to -i
options before checking whether or not the identity file
exists. Avoids confusion for cases where shell doesn't expand
(e.g. "-i ~/file" vs. "-i~/file").
* ssh(1): do not prepend "exec" to the shell command run by
"Match exec" in a config file, which could cause some
commands to fail in certain environments.
* ssh-keyscan(1): fix output for multiple hosts/addrs on one
line when host hashing or a non standard port is in use
* sshd(8): skip "Could not chdir to home directory" message
when ChrootDirectory is active.
* ssh(1): include PubkeyAcceptedKeyTypes in ssh -G config dump.
* sshd(8): avoid changing TunnelForwarding device flags if they
are already what is needed; makes it possible to use tun/tap
networking as non-root user if device permissions and
interface flags are pre-established
* ssh(1), sshd(8): RekeyLimits could be exceeded by one packet.
* ssh(1): fix multiplexing master failure to notice client
exit.
* ssh(1), ssh-agent(1): avoid fatal() for PKCS11 tokens that
present empty key IDs.
* sshd(8): avoid printf of NULL argument.
* ssh(1), sshd(8): allow RekeyLimits larger than 4GB.
* ssh-keygen(1): sshd(8): fix several bugs in (unused) KRL
signature support.
* ssh(1), sshd(8): fix connections with peers that use the key
exchange guess feature of the protocol.
* sshd(8): include remote port number in log messages.
* ssh(1): don't try to load SSHv1 private key when compiled
without SSHv1 support.
* ssh-agent(1), ssh(1): fix incorrect error messages during key
loading and signing errors.
* ssh-keygen(1): don't leave empty temporary files when
performing known_hosts file edits when known_hosts doesn't
exist.
* sshd(8): correct packet format for tcpip-forward replies for
requests that don't allocate a port
* ssh(1), sshd(8): fix possible hang on closed output.
* ssh(1): expand %i in ControlPath to UID.
* ssh(1), sshd(8): fix return type of openssh_RSA_verify.
* ssh(1), sshd(8): fix some option parsing memory leaks.
* ssh(1): add a some debug output before DNS resolution; it's a
place where ssh could previously silently stall in cases of
unresponsive DNS servers.
* ssh(1): remove spurious newline in visual hostkey.
* ssh(1): fix printing (ssh -G ...) of HostKeyAlgorithms=+...
* ssh(1): fix expansion of HostkeyAlgorithms=+...
Documentation:
* ssh_config(5), sshd_config(5): update default algorithm lists
to match current reality.
* ssh(1): mention -Q key-plain and -Q key-cert query options.
* sshd_config(8): more clearly describe what
AuthorizedKeysFile=none does.
* ssh_config(5): better document ExitOnForwardFailure.
* sshd(5): mention internal DH-GEX fallback groups in manual.
* sshd_config(5): better description for MaxSessions option.
Portability:
* sshd(8): fix multiple authentication using S/Key.
- OpenSSH 7.2p2:
Security:
* sshd(8): sanitise X11 authentication credentials to avoid
xauth command injection when X11Forwarding is enabled.
(removing patches from previous version:
* CVE-2016-0777_CVE-2016-0778.patch
* openssh-6.6p1-X11-forwarding.patch
* openssh-6.6p1-X_forward_with_disabled_ipv6.patch
* openssh-6.6p1-audit1-remove_duplicit_audit.patch
* openssh-6.6p1-audit2-better_audit_of_user_actions.patch
* openssh-6.6p1-audit3-key_auth_usage-fips.patch
* openssh-6.6p1-audit3-key_auth_usage.patch
* openssh-6.6p1-audit4-kex_results-fips.patch
* openssh-6.6p1-audit4-kex_results.patch
* openssh-6.6p1-audit5-session_key_destruction.patch
* openssh-6.6p1-audit6-server_key_destruction.patch
* openssh-6.6p1-audit7-libaudit_compat.patch
* openssh-6.6p1-audit8-libaudit_dns_timeouts.patch
* openssh-6.6p1-blocksigalrm.patch
* openssh-6.6p1-curve25519-6.6.1p1.patch
* openssh-6.6p1-default-protocol.patch
* openssh-6.6p1-disable-openssl-abi-check.patch
* openssh-6.6p1-eal3.patch
* openssh-6.6p1-fingerprint_hash.patch
* openssh-6.6p1-fips-checks.patch
* openssh-6.6p1-fips.patch
* openssh-6.6p1-gssapi_key_exchange.patch
* openssh-6.6p1-gssapimitm.patch
* openssh-6.6p1-host_ident.patch
* openssh-6.6p1-key-converter.patch
* openssh-6.6p1-lastlog.patch
* openssh-6.6p1-ldap.patch
* openssh-6.6p1-login_options.patch
* openssh-6.6p1-no_fork-no_pid_file.patch
* openssh-6.6p1-pam-check-locks.patch
* openssh-6.6p1-pam-fix2.patch
* openssh-6.6p1-pam-fix3.patch
* openssh-6.6p1-pts.patch
* openssh-6.6p1-saveargv-fix.patch
* openssh-6.6p1-seccomp_getuid.patch
* openssh-6.6p1-seccomp_stat.patch
* openssh-6.6p1-seed-prng.patch
* openssh-6.6p1-send_locale.patch
* openssh-6.6p1-sftp_force_permissions.patch
* openssh-6.6p1-sftp_homechroot.patch
* openssh-6.6p1-xauth.patch
* openssh-6.6p1-xauthlocalhostname.patch)
- update seccomp sandbox that broke after OpenSSL update
(bsc#912436, bsc#977812)
[openssh-6.6p1-seccomp_stat.patch]
- openssh-6.6p1-ldap.patch: replace TRUE/FALSE with 1/0, since
this defines did come via an indirect header inclusion and are
not everywhere defined.
- CVE-2016-0777, bsc#961642, CVE-2016-0778, bsc#961645
Add CVE-2016-0777_CVE-2016-0778.patch to disable the roaming code
to prevent information leak and buffer overflow
- gpg signature and keyring added.
pub 3200R/6D920D30 2013-12-10 [expires: 2021-01-01]
uid Damien Miller