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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.
Forwarded: not-needed
Last-Update: 2014-10-07
Patch-Name: restore-tcp-wrappers.patch
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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: 2016-08-07
Patch-Name: gssapi.patch
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Report by and debugged with Hisashi T Fujinaka, dtucker nailed
the problem (lack of prototype causing return type confusion).
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Patch from vinschen at redhat.com.
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The hmac-ripemd160 was incorrect and could lead to broken
Makefiles on systems that lacked support for it, but I made
all the others consistent too.
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If we don't have it, set BROKEN_STRNVIS to activate the compat replacement.
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If we don't have wcwidth force fallback implementations of nl_langinfo
and mbtowc. Based on advice from Ingo Schwarze.
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Move implementations of err.h replacement functions into their own file
in the libopenbsd-compat so we can use them in kexfuzz.c too. ok djm@
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Wrap includes in the appropriate #ifdefs.
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bz#2590 - testing and patch from Jakub Jelen
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Where possible, use Solaris setpflags to disable process tracing on
ssh-agent and sftp-server. bz#2584, based on a patch from huieying.lee
at oracle.com, ok djm.
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whitspace clean up. No code changes.
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Replace by defining IPPORT_RESERVED to zero on Cygwin, which should have
the same effect without causing problems syncing patches with OpenBSD.
Resync the two affected functions with OpenBSD. ok djm, sanity checked
by Corinna.
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sshd was failing with:
ssh_sandbox_child: sandbox_init: dlopen(/usr/lib/libsandbox.1.dylib, 261):cw
image not found [preauth]
caused by chroot before sandboxing. Avoid by explicitly linking libsandbox
to sshd. Spotted by Darren.
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Not all systems with Solaris privs have priv_basicset so factor that
out and provide backward compatibility code. Similarly, not all have
PRIV_NET_ACCESS so wrap that in #ifdef. Based on code from
alex at cooperi.net and djm@ with help from carson at taltos.org and
wieland at purdue.edu.
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Should fix build problem on Solaris 2.6 reported by Tom G. Christensen.
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Includes a pre-auth privsep sandbox and several pledge()
emulations. bz#2511, patch by Alex Wilson.
ok dtucker@
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Patch from Mike Frysinger via github.
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Patch from doughdemon via github.
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Fixes builds on almost everything.
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Noted by Austin English.
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Change all tame callers to namechange to pledge(2).
Upstream-ID: 17e654fc27ceaf523c60f4ffd9ec7ae4e7efc7f2
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OpenBSD only for now
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bz#2457, from konto-mindrot.org at walimnieto.com.
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bz#2259, from sconeu at yahoo.com.
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On some platforms the native realpath doesn't work with non-existent
files (this is actually specified in some versions of POSIX), however
the sftp spec says its realpath with "canonicalize any given path name".
On those platforms, use realpath from the compat library.
In addition, when compiling with -DFORTIFY_SOURCE, glibc redefines
the realpath symbol to the checked version, so redefine ours to
something else so we pick up the compat version we want.
bz#2428, ok djm@
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Compile-time disable SSH v.1 again
Upstream-ID: 1d4b513a3a06232f02650b73bad25100d1b800af
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Also resort and tidy syscall list. Based on patches by Jakub Jelen
bz#2361; ok dtucker@
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This changes configure.ac to look for '${host}-ar' as set by
AC_CANONICAL_HOST before looking for the unprefixed 'ar'.
Useful when cross-compiling when all your binutils are prefixed.
Patch from moben at exherbo org via astrand at lysator liu se and
bz#2352.
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Compile-time disable SSH protocol 1. You can turn it
back on using the Makefile.inc knob if you need it to talk to ancient
devices.
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fixes builds on systems that use DES_crypt; based on patch
from Roumen Petrov
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Some platforms (older FreeBSD and DragonFly versions) do have
getaddrinfo() but do not have AI_NUMERICINFO. so define it to zero
in those cases.
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Disables and removes dependency on OpenSSL. Many features don't
work and the set of crypto options is greatly restricted. This
will only work on system with native arc4random or /dev/urandom.
Considered highly experimental for now.
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Allows disabling support for SSH protocol 1.
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using memset_s() where possible; improve fallback to indirect bzero
via a volatile pointer to give it more of a chance to avoid being
optimised away.
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just for systems that lack asprintf); check for it always and extend
test to catch more brokenness. Fixes builds on Solaris <= 9
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number; fixes test for unsupported versions
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suggested by Kevin Brott
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