Package: openssh / 1:7.9p1-4

Metadata

Package Version Patches format
openssh 1:7.9p1-4 3.0 (quilt)

Patch series

view the series file
Patch File delta Description
gssapi.patch | (download)

ChangeLog.gssapi | 113 113 + 0 - 0 !
Makefile.in | 3 2 + 1 - 0 !
auth-krb5.c | 17 15 + 2 - 0 !
auth.c | 96 2 + 94 - 0 !
auth2-gss.c | 54 51 + 3 - 0 !
auth2.c | 2 2 + 0 - 0 !
canohost.c | 93 93 + 0 - 0 !
canohost.h | 3 3 + 0 - 0 !
clientloop.c | 15 14 + 1 - 0 !
config.h.in | 6 6 + 0 - 0 !
configure.ac | 24 24 + 0 - 0 !
gss-genr.c | 280 276 + 4 - 0 !
gss-serv-krb5.c | 85 78 + 7 - 0 !
gss-serv.c | 184 170 + 14 - 0 !
kex.c | 19 19 + 0 - 0 !
kex.h | 14 14 + 0 - 0 !
kexgssc.c | 341 341 + 0 - 0 !
kexgsss.c | 300 300 + 0 - 0 !
monitor.c | 122 113 + 9 - 0 !
monitor.h | 3 3 + 0 - 0 !
monitor_wrap.c | 53 52 + 1 - 0 !
monitor_wrap.h | 4 3 + 1 - 0 !
opacket.c | 2 1 + 1 - 0 !
opacket.h | 2 1 + 1 - 0 !
readconf.c | 43 43 + 0 - 0 !
readconf.h | 5 5 + 0 - 0 !
servconf.c | 26 26 + 0 - 0 !
servconf.h | 2 2 + 0 - 0 !
ssh-gss.h | 41 37 + 4 - 0 !
ssh_config | 2 2 + 0 - 0 !
ssh_config.5 | 32 32 + 0 - 0 !
sshconnect2.c | 133 131 + 2 - 0 !
sshd.c | 110 110 + 0 - 0 !
sshd_config | 2 2 + 0 - 0 !
sshd_config.5 | 10 10 + 0 - 0 !
sshkey.c | 3 2 + 1 - 0 !
sshkey.h | 1 1 + 0 - 0 !
37 files changed, 2099 insertions(+), 146 deletions(-)

 gssapi key exchange support

This patch has been rejected upstream: "None of the OpenSSH developers are
in favour of adding this, and this situation has not changed for several
years.  This is not a slight on Simon's patch, which is of fine quality, but
just that a) we don't trust GSSAPI implementations that much and b) we don't
like adding new KEX since they are pre-auth attack surface.  This one is
particularly scary, since it requires hooks out to typically root-owned
system resources."

However, quite a lot of people rely on this in Debian, and it's better to
have it merged into the main openssh package rather than having separate
-krb5 packages (as we used to have).  It seems to have a generally good
security history.

Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1242
Last-Updated: 2018-10-20

Patch-Name: gssapi.patch

restore tcp wrappers.patch | (download)

configure.ac | 57 57 + 0 - 0 !
sshd.8 | 7 7 + 0 - 0 !
sshd.c | 25 25 + 0 - 0 !
3 files changed, 89 insertions(+)

 restore tcp wrappers support

Support for TCP wrappers was dropped in OpenSSH 6.7.  See this message
and thread:

  https://lists.mindrot.org/pipermail/openssh-unix-dev/2014-April/032497.html

It is true that this reduces preauth attack surface in sshd.  On the
other hand, this support seems to be quite widely used, and abruptly
dropping it (from the perspective of users who don't read
openssh-unix-dev) could easily cause more serious problems in practice.

It's not entirely clear what the right long-term answer for Debian is,
but it at least probably doesn't involve dropping this feature shortly
before a freeze.

selinux role.patch | (download)

auth.h | 1 1 + 0 - 0 !
auth2.c | 10 8 + 2 - 0 !
monitor.c | 37 33 + 4 - 0 !
monitor.h | 2 2 + 0 - 0 !
monitor_wrap.c | 27 24 + 3 - 0 !
monitor_wrap.h | 3 2 + 1 - 0 !
openbsd-compat/port-linux.c | 21 14 + 7 - 0 !
openbsd-compat/port-linux.h | 4 2 + 2 - 0 !
platform.c | 4 2 + 2 - 0 !
platform.h | 2 1 + 1 - 0 !
session.c | 10 5 + 5 - 0 !
session.h | 2 1 + 1 - 0 !
sshd.c | 2 1 + 1 - 0 !
sshpty.c | 4 2 + 2 - 0 !
sshpty.h | 2 1 + 1 - 0 !
15 files changed, 99 insertions(+), 32 deletions(-)

 handle selinux authorisation roles

Rejected upstream due to discomfort with magic usernames; a better approach
will need an SSH protocol change.  In the meantime, this came from Debian's
SELinux maintainer, so we'll keep it until we have something better.

Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1641
Bug-Debian: http://bugs.debian.org/394795
ssh vulnkey compat.patch | (download)

readconf.c | 1 1 + 0 - 0 !
servconf.c | 1 1 + 0 - 0 !
2 files changed, 2 insertions(+)

 accept obsolete ssh-vulnkey configuration options

These options were used as part of Debian's response to CVE-2008-0166.
Nearly six years later, we no longer need to continue carrying the bulk
of that patch, but we do need to avoid failing when the associated
configuration options are still present.

keepalive extensions.patch | (download)

readconf.c | 14 12 + 2 - 0 !
ssh_config.5 | 21 19 + 2 - 0 !
sshd_config.5 | 3 3 + 0 - 0 !
3 files changed, 34 insertions(+), 4 deletions(-)

 various keepalive extensions

Add compatibility aliases for ProtocolKeepAlives and SetupTimeOut, supported
in previous versions of Debian's OpenSSH package but since superseded by
ServerAliveInterval.  (We're probably stuck with this bit for
compatibility.)

In batch mode, default ServerAliveInterval to five minutes.

Adjust documentation to match and to give some more advice on use of
keepalives.

syslog level silent.patch | (download)

log.c | 1 1 + 0 - 0 !
ssh.c | 2 1 + 1 - 0 !
2 files changed, 2 insertions(+), 1 deletion(-)

 "loglevel silent" compatibility

"LogLevel SILENT" (-qq) was introduced in Debian openssh 1:3.0.1p1-1 to
match the behaviour of non-free SSH, in which -q does not suppress fatal
errors.  However, this was unintentionally broken in 1:4.6p1-2 and nobody
complained, so we've dropped most of it.  The parts that remain are basic
configuration file compatibility, and an adjustment to "Pseudo-terminal will
not be allocated ..." which should be split out into a separate patch.

user group modes.patch | (download)

auth-rhosts.c | 6 2 + 4 - 0 !
auth.c | 3 1 + 2 - 0 !
misc.c | 58 53 + 5 - 0 !
misc.h | 2 2 + 0 - 0 !
readconf.c | 3 1 + 2 - 0 !
ssh.1 | 2 2 + 0 - 0 !
ssh_config.5 | 2 2 + 0 - 0 !
7 files changed, 63 insertions(+), 13 deletions(-)

 allow harmless group-writability

Allow secure files (~/.ssh/config, ~/.ssh/authorized_keys, etc.) to be
group-writable, provided that the group in question contains only the file's
owner.  Rejected upstream for IMO incorrect reasons (e.g. a misunderstanding
about the contents of gr->gr_mem).  Given that per-user groups and umask 002
are the default setup in Debian (for good reasons - this makes operating in
setgid directories with other groups much easier), we need to permit this by
default.

Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1060
Bug-Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=314347
scp quoting.patch | (download)

scp.c | 12 10 + 2 - 0 !
1 file changed, 10 insertions(+), 2 deletions(-)

 adjust scp quoting in verbose mode

Tweak scp's reporting of filenames in verbose mode to be a bit less
confusing with spaces.

This should be revised to mimic real shell quoting.

Bug-Ubuntu: https://bugs.launchpad.net/bugs/89945
shell path.patch | (download)

sshconnect.c | 4 2 + 2 - 0 !
1 file changed, 2 insertions(+), 2 deletions(-)

 look for $shell on the path for proxycommand/localcommand

There's some debate on the upstream bug about whether POSIX requires this.
I (Colin Watson) agree with Vincent and think it does.

Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1494
Bug-Debian: http://bugs.debian.org/492728
dnssec sshfp.patch | (download)

dns.c | 14 13 + 1 - 0 !
openbsd-compat/getrrsetbyname.c | 10 5 + 5 - 0 !
openbsd-compat/getrrsetbyname.h | 3 3 + 0 - 0 !
3 files changed, 21 insertions(+), 6 deletions(-)

 force use of dnssec even if "options edns0" isn't in resolv.conf

This allows SSHFP DNS records to be verified if glibc 2.11 is installed.

mention ssh keygen on keychange.patch | (download)

sshconnect.c | 9 8 + 1 - 0 !
1 file changed, 8 insertions(+), 1 deletion(-)

 mention ssh-keygen in ssh fingerprint changed warning

package versioning.patch | (download)

sshconnect.c | 2 1 + 1 - 0 !
sshd.c | 2 1 + 1 - 0 !
version.h | 7 6 + 1 - 0 !
3 files changed, 8 insertions(+), 3 deletions(-)

 include the debian version in our identification

This makes it easier to audit networks for versions patched against security
vulnerabilities.  It has little detrimental effect, as attackers will
generally just try attacks rather than bothering to scan for
vulnerable-looking version strings.  (However, see debian-banner.patch.)

debian banner.patch | (download)

servconf.c | 9 9 + 0 - 0 !
servconf.h | 2 2 + 0 - 0 !
sshd.c | 3 2 + 1 - 0 !
sshd_config.5 | 5 5 + 0 - 0 !
4 files changed, 18 insertions(+), 1 deletion(-)

 add debianbanner server configuration option

Setting this to "no" causes sshd to omit the Debian revision from its
initial protocol handshake, for those scared by package-versioning.patch.

Bug-Debian: http://bugs.debian.org/562048
authorized keys man symlink.patch | (download)

Makefile.in | 1 1 + 0 - 0 !
1 file changed, 1 insertion(+)

 install authorized_keys(5) as a symlink to sshd(8)

Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1720
Bug-Debian: http://bugs.debian.org/441817
openbsd docs.patch | (download)

moduli.5 | 4 2 + 2 - 0 !
ssh-keygen.1 | 12 4 + 8 - 0 !
ssh.1 | 4 4 + 0 - 0 !
sshd.8 | 5 2 + 3 - 0 !
sshd_config.5 | 3 1 + 2 - 0 !
5 files changed, 13 insertions(+), 15 deletions(-)

 adjust various openbsd-specific references in manual pages

No single bug reference for this patch, but history includes:
 http://bugs.debian.org/154434 (login.conf(5))
 http://bugs.debian.org/513417 (/etc/rc)
 http://bugs.debian.org/530692 (ssl(8))
 https://bugs.launchpad.net/bugs/456660 (ssl(8))

ssh argv0.patch | (download)

ssh.1 | 1 1 + 0 - 0 !
1 file changed, 1 insertion(+)

 ssh(1): refer to ssh-argv0(1)

Old versions of OpenSSH (up to 2.5 or thereabouts) allowed creating symlinks
to ssh with the name of the host you want to connect to.  Debian ships an
ssh-argv0 script restoring this feature; this patch refers to its manual
page from ssh(1).

Bug-Debian: http://bugs.debian.org/111341
doc hash tab completion.patch | (download)

ssh_config.5 | 3 3 + 0 - 0 !
1 file changed, 3 insertions(+)

 document that hashknownhosts may break tab-completion

Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1727
Bug-Debian: http://bugs.debian.org/430154
ssh agent setgid.patch | (download)

ssh-agent.1 | 15 15 + 0 - 0 !
1 file changed, 15 insertions(+)

 document consequences of ssh-agent being setgid in ssh-agent(1)

Bug-Debian: http://bugs.debian.org/711623
no openssl version status.patch | (download)

openbsd-compat/openssl-compat.c | 6 3 + 3 - 0 !
openbsd-compat/regress/opensslvertest.c | 1 1 + 0 - 0 !
2 files changed, 4 insertions(+), 3 deletions(-)

 don't check the status field of the openssl version

There is no reason to check the version of OpenSSL (in Debian).  If it's
not compatible the soname will change.  OpenSSH seems to want to do a
check for the soname based on the version number, but wants to keep the
status of the release the same.  Remove that check on the status since
it doesn't tell you anything about how compatible that version is.

gnome ssh askpass2 icon.patch | (download)

contrib/gnome-ssh-askpass2.c | 2 2 + 0 - 0 !
1 file changed, 2 insertions(+)

 give the ssh-askpass-gnome window a default icon

Bug-Ubuntu: https://bugs.launchpad.net/bugs/27152
systemd readiness.patch | (download)

configure.ac | 24 24 + 0 - 0 !
sshd.c | 9 9 + 0 - 0 !
2 files changed, 33 insertions(+)

 add systemd readiness notification support

Bug-Debian: https://bugs.debian.org/778913
debian config.patch | (download)

readconf.c | 2 1 + 1 - 0 !
ssh.1 | 21 21 + 0 - 0 !
ssh_config | 6 5 + 1 - 0 !
ssh_config.5 | 19 18 + 1 - 0 !
sshd_config | 16 10 + 6 - 0 !
sshd_config.5 | 22 22 + 0 - 0 !
6 files changed, 77 insertions(+), 9 deletions(-)

 various debian-specific configuration changes

ssh: Enable ForwardX11Trusted, returning to earlier semantics which cause
fewer problems with existing setups (http://bugs.debian.org/237021).

ssh: Set 'SendEnv LANG LC_*' by default (http://bugs.debian.org/264024).

ssh: Enable HashKnownHosts by default to try to limit the spread of ssh
worms.

ssh: Enable GSSAPIAuthentication by default.

sshd: Enable PAM, disable ChallengeResponseAuthentication, and disable
PrintMotd.

sshd: Enable X11Forwarding.

sshd: Set 'AcceptEnv LANG LC_*' by default.

sshd: Change sftp subsystem path to /usr/lib/openssh/sftp-server.

Document all of this.

restore authorized_keys2.patch | (download)

sshd_config | 5 2 + 3 - 0 !
1 file changed, 2 insertions(+), 3 deletions(-)

 restore reading authorized_keys2 by default

Upstream seems to intend to gradually phase this out, so don't assume
that this will remain the default forever.  However, we were late in
adopting the upstream sshd_config changes, so it makes sense to extend
the grace period.

Bug-Debian: https://bugs.debian.org/852320
seccomp s390 flock ipc.patch | (download)

sandbox-seccomp-filter.c | 6 6 + 0 - 0 !
1 file changed, 6 insertions(+)

 allow flock and ipc syscall for s390 architecture

In order to use the OpenSSL-ibmpkcs11 engine it is needed to allow flock
and ipc calls, because this engine calls OpenCryptoki (a PKCS#11
implementation) which calls the libraries that will communicate with the
crypto cards. OpenCryptoki makes use of flock and ipc and, as of now,
this is only need on s390 architecture.

Signed-off-by: Eduardo Barretto <ebarretto@linux.vnet.ibm.com>

seccomp s390 ioctl ep11 crypto.patch | (download)

sandbox-seccomp-filter.c | 2 2 + 0 - 0 !
1 file changed, 2 insertions(+)

 enable specific ioctl call for ep11 crypto card (s390)

The EP11 crypto card needs to make an ioctl call, which receives an
specific argument. This crypto card is for s390 only.

Signed-off-by: Eduardo Barretto <ebarretto@linux.vnet.ibm.com>

conch old privkey format.patch | (download)

regress/Makefile | 5 3 + 2 - 0 !
regress/conch-ciphers.sh | 2 1 + 1 - 0 !
regress/test-exec.sh | 12 12 + 0 - 0 !
3 files changed, 16 insertions(+), 3 deletions(-)

 work around conch interoperability failure

Twisted Conch fails to read private keys in the new format
(https://twistedmatrix.com/trac/ticket/9515).  Work around this until it
can be fixed in Twisted.