2017.75 - 18 May 2017

- Security: Fix double-free in server TCP listener cleanup
  A double-free in the server could be triggered by an authenticated user if
  dropbear is running with -a (Allow connections to forwarded ports from any host)
  This could potentially allow arbitrary code execution as root by an authenticated user.
  Affects versions 2013.56 to 2016.74. Thanks to Mark Shepard for reporting the crash.
  CVE-2017-9078 https://secure.ucc.asn.au/hg/dropbear/rev/c8114a48837c

- Security: Fix information disclosure with ~/.ssh/authorized_keys symlink.
  Dropbear parsed authorized_keys as root, even if it were a symlink. The fix
  is to switch to user permissions when opening authorized_keys

  A user could symlink their ~/.ssh/authorized_keys to a root-owned file they
  couldn't normally read. If they managed to get that file to contain valid
  authorized_keys with command= options it might be possible to read other
  contents of that file.
  This information disclosure is to an already authenticated user.
  Thanks to Jann Horn of Google Project Zero for reporting this.
  CVE-2017-9079 https://secure.ucc.asn.au/hg/dropbear/rev/0d889b068123

- Generate hostkeys with dropbearkey atomically and flush to disk with fsync
  Thanks to Andrei Gherzan for a patch

- Fix out of tree builds with bundled libtom
  Thanks to Henrik Nordström and Peter Krefting for patches.

2016.74 - 21 July 2016

- Security: Message printout was vulnerable to format string injection.

  If specific usernames including "%" symbols can be created on a system
  (validated by getpwnam()) then an attacker could run arbitrary code as root
  when connecting to Dropbear server.

  A dbclient user who can control username or host arguments could potentially
  run arbitrary code as the dbclient user. This could be a problem if scripts
  or webpages pass untrusted input to the dbclient program.
  CVE-2016-7406
  https://secure.ucc.asn.au/hg/dropbear/rev/b66a483f3dcb

- Security: dropbearconvert import of OpenSSH keys could run arbitrary code as
  the local dropbearconvert user when parsing malicious key files
  CVE-2016-7407
  https://secure.ucc.asn.au/hg/dropbear/rev/34e6127ef02e

- Security: dbclient could run arbitrary code as the local dbclient user if
  particular -m or -c arguments are provided. This could be an issue where
  dbclient is used in scripts.
  CVE-2016-7408
  https://secure.ucc.asn.au/hg/dropbear/rev/eed9376a4ad6

- Security: dbclient or dropbear server could expose process memory to the
  running user if compiled with DEBUG_TRACE and running with -v
  CVE-2016-7409
  https://secure.ucc.asn.au/hg/dropbear/rev/6a14b1f6dc04

  The security issues were reported by an anonymous researcher working with
  Beyond Security's SecuriTeam Secure Disclosure www.beyondsecurity.com/ssd.html

- Fix port forwarding failure when connecting to domains that have both
  IPv4 and IPv6 addresses. The bug was introduced in 2015.68

- Fix 100% CPU use while waiting for rekey to complete. Thanks to Zhang Hui P
  for the patch


2016.73 - 18 March 2016

- Support syslog in dbclient, option -o usesyslog=yes. Patch from Konstantin Tokarev

- Kill a proxycommand when dbclient exits, patch from Konstantin Tokarev

- Option to exit when a TCP forward fails, patch from Konstantin Tokarev

- New "-o" option parsing from Konstantin Tokarev. This allows handling some extra options
  in the style of OpenSSH, though implementing all OpenSSH options is not planned.

- Fix crash when fallback initshells() is used, reported by Michael Nowak and Mike Tzou

- Allow specifying commands eg "dropbearmulti dbclient ..." instead of symlinks

- Various cleanups for issues found by a lint tool, patch from Francois Perrad

- Fix tab indent consistency, patch from Francois Perrad

- Fix issues found by cppcheck, reported by Mike Tzou

- Use system memset_s() or explicit_bzero() if available to clear memory. Also make
  libtomcrypt/libtommath routines use that (or Dropbear's own m_burn()).

- Prevent scp failing when the local user doesn't exist. Based on patch from Michael Witten.

- Improved Travis CI test running, thanks to Mike Tzou

- Improve some code that was flagged by Coverity and Fortify Static Code Analyzer

2016.72 - 9 March 2016

- Validate X11 forwarding input. Could allow bypass of authorized_keys command= restrictions,
  found by github.com/tintinweb. Thanks for Damien Miller for a patch. CVE-2016-3116
  https://secure.ucc.asn.au/hg/dropbear/rev/a3e8389e01ff

2015.71 - 3 December 2015

- Fix "bad buf_incrpos" when data is transferred, broke in 2015.69

- Fix crash on exit when -p address:port is used, broke in 2015.68, thanks to
  Frank Stollenwerk for reporting and investigation

- Fix building with only ENABLE_CLI_REMOTETCPFWD given, patch from Konstantin Tokarev

- Fix bad configure script test which didn't work with dash shell, patch from Juergen Daubert,
  broke in 2015.70

- Fix server race condition that could cause sessions to hang on exit,
  https://github.com/robotframework/SSHLibrary/issues/128

2015.70 - 26 November 2015

- Fix server password authentication on Linux, broke in 2015.69

2015.69 - 25 November 2015

- Fix crash when forwarded TCP connections fail to connect (bug introduced in 2015.68)

- Avoid hang on session close when multiple sessions are started, affects Qt Creator
  Patch from Andrzej Szombierski

- Reduce per-channel memory consumption in common case, increase default
  channel limit from 100 to 1000 which should improve SOCKS forwarding for modern
  webpages

- Handle multiple command line arguments in a single flag, thanks to Guilhem Moulin

- Manpage improvements from Guilhem Moulin

- Build fixes for Android from Mike Frysinger

- Don't display the MOTD when an explicit command is run from Guilhem Moulin

- Check curve25519 shared secret isn't zero

2015.68 - Saturday 8 August 2015

- Reduce local data copying for improved efficiency. Measured 30%
  increase in throughput for connections to localhost

- Forwarded TCP ports connect asynchronously and try all available addresses
  (IPv4, IPv6, round robin DNS)

- Fix all compile warnings, many patches from Gaël Portay
  Note that configure with -Werror may not be successful on some platforms (OS X)
  and some configuration options may still result in unused variable
  warnings.

- Use TCP Fast Open on Linux if available. Saves a round trip at connection
  to hosts that have previously been connected. 
  Needs a recent Linux kernel and possibly "sysctl -w net.ipv4.tcp_fastopen=3"
  Client side is disabled by default pending further compatibility testing
  with networks and systems.

- Increase maximum command length to 9000 bytes

- Free memory before exiting, patch from Thorsten Horstmann. Useful for
  Dropbear ports to embedded systems and for checking memory leaks
  with valgrind. Only partially implemented for dbclient.
  This is disabled by default, enable with DROPBEAR_CLEANUP in sysoptions.h

- DROPBEAR_DEFAULT_CLI_AUTHKEY setting now always prepends home directory unless
  there is a leading slash (~ isn't treated specially)

- Fix small ECC memory leaks

- Tighten validation of Diffie-Hellman parameters, from Florent Daigniere of
  Matta Consulting. Odds of bad values are around 2**-512 -- improbable.

- Twofish-ctr cipher is supported though disabled by default

- Fix pre-authentication timeout when waiting for client SSH-2.0 banner, thanks
  to CL Ouyang

- Fix null pointer crash with restrictions in authorized_keys without a command, patch from
  Guilhem Moulin

- Ensure authentication timeout is handled while reading the initial banner,
  thanks to CL Ouyang for finding it.

- Fix null pointer crash when handling bad ECC keys. Found by afl-fuzz

2015.67 - Wednesday 28 January 2015

- Call fsync() after generating private keys to ensure they aren't lost if a
  reboot occurs. Thanks to Peter Korsgaard

- Disable non-delayed zlib compression by default on the server. Can be
  enabled if required for old clients with DROPBEAR_SERVER_DELAY_ZLIB

- Default client key path ~/.ssh/id_dropbear

- Prefer stronger algorithms by default, from Fedor Brunner. 
  AES256 over 3DES
  Diffie-hellman group14 over group1

- Add option to disable CBC ciphers.

- Disable twofish in default options.h

- Enable sha2 HMAC algorithms by default, the code was already required
  for ECC key exchange. sha1 is the first preference still for performance. 

- Fix installing dropbear.8 in a separate build directory, from Like Ma

- Allow configure to succeed if libtomcrypt/libtommath are missing, from Elan Ruusamäe

- Don't crash if ssh-agent provides an unknown type of key. From Catalin Patulea

- Minor bug fixes, a few issues found by Coverity scan

2014.66 - Thursday 23 October 2014

- Use the same keepalive handling behaviour as OpenSSH. This will work better 
  with some SSH implementations that have different behaviour with unknown 
  message types.

- Don't reply with SSH_MSG_UNIMPLEMENTED when we receive a reply to our own 
  keepalive message

- Set $SSH_CLIENT to keep bash happy, patch from Ryan Cleere

- Fix wtmp which broke since 2013.62, patch from Whoopie

2014.65 - Friday 8 August 2014

- Fix 2014.64 regression, server session hang on exit with scp (and probably
  others), thanks to NiLuJe for tracking it down

- Fix 2014.64 regression, clock_gettime() error handling which broke on older
  Linux kernels, reported by NiLuJe

- Fix 2014.64 regression, writev() could occassionally fail with EAGAIN which
  wasn't caught

- Avoid error message when trying to set QoS on proxycommand or multihop pipes

- Use /usr/bin/xauth, thanks to Mike Frysinger

- Don't exit the client if the local user entry can't be found, thanks to iquaba

2014.64 - Sunday 27 July 2014

- Fix compiling with ECDSA and DSS disabled

- Don't exit abruptly if too many outgoing packets are queued for writev(). Patch
  thanks to Ronny Meeus

- The -K keepalive option now behaves more like OpenSSH's "ServerAliveInterval". 
  If no response is received after 3 keepalives then the session is terminated. This
  will close connections faster than waiting for a TCP timeout.

- Rework TCP priority setting. New settings are
	if (connecting || ptys || x11) tos = LOWDELAY
	else if (tcp_forwards) tos = 0
	else tos = BULK
  Thanks to Catalin Patulea for the suggestion.

- Improve handling of many concurrent new TCP forwarded connections, should now
  be able to handle as many as MAX_CHANNELS. Thanks to Eduardo Silva for reporting
  and investigating it.

- Make sure that exit messages from the client are printed, regression in 2013.57

- Use monotonic clock where available, timeouts won't be affected by system time
  changes

- Add -V for version

2014.63 - Wednesday 19 February 2014

- Fix ~. to terminate a client interactive session after waking a laptop
  from sleep.

- Changed port separator syntax again, now using host^port. This is because
  IPv6 link-local addresses use %. Reported by Gui Iribarren

- Avoid constantly relinking dropbearmulti target, fix "make install"
  for multi target, thanks to Mike Frysinger

- Avoid getting stuck in a loop writing huge key files, reported by Bruno
  Thomsen

- Don't link dropbearkey or dropbearconvert to libz or libutil, 
  thanks to Nicolas Boos

- Fix linking -lcrypt on systems without /usr/lib, thanks to Nicolas Boos

- Avoid crash on exit due to cleaned up keys before last packets are sent,
  debugged by Ronald Wahl

- Fix a race condition in rekeying where Dropbear would exit if it received a
  still-in-flight packet after initiating rekeying. Reported by Oliver Metz.
  This is a longstanding bug but is triggered more easily since 2013.57

- Fix README for ecdsa keys, from Catalin Patulea

- Ensure that generated RSA keys are always exactly the length
  requested. Previously Dropbear always generated N+16 or N+15 bit keys.
  Thanks to Unit 193

- Fix DROPBEAR_CLI_IMMEDIATE_AUTH mode which saves a network round trip if the
  first public key succeeds. Still not enabled by default, needs more
  compatibility testing with other implementations.

- Fix for port 0 forwarding in the client and port forwarding with Apache MINA SSHD. Thanks to 

- Fix for bad system linux/pkt-sched.h header file with older Linux
kernels, from Steve Dover

- Fix signal handlers so that errno is saved, thanks to Erik Ahlén for a patch
  and Mark Wickham for independently spotting the same problem.

2013.62 - Tuesday 3 December 2013

- Disable "interactive" QoS connection options when a connection doesn't
  have a PTY (eg scp, rsync). Thanks to Catalin Patulea for the patch.

- Log when a hostkey is generated with -R, fix some bugs in handling server
  hostkey commandline options

- Fix crash in Dropbearconvert and 521 bit key, reported by NiLuJe

- Update config.guess and config.sub again

2013.61test - Thursday 14 November 2013

- ECC (elliptic curve) support. Supports ECDSA hostkeys (requires new keys to
  be generated) and ECDH for setting up encryption keys (no intervention
  required). This is significantly faster.

- [email protected] support for setting up encryption keys. This is
  another elliptic curve mode with less potential of NSA interference in
  algorithm parameters. curve25519-donna code thanks to Adam Langley

- -R option to automatically generate hostkeys. This is recommended for
  embedded platforms since it allows the system random number device
  /dev/urandom a longer startup time to generate a secure seed before the
  hostkey is required.

- Compile fixes for old vendor compilers like Tru64 from Daniel Richard G.

- Make authorized_keys handling more robust, don't exit encountering
  malformed lines. Thanks to Lorin Hochstein and Mark Stillwell 

2013.60 - Wednesday 16 October 2013

- Fix "make install" so that it doesn't always install to /bin and /sbin

- Fix "make install MULTI=1", installing manpages failed

- Fix "make install" when scp is included since it has no manpage

- Make --disable-bundled-libtom work

2013.59 - Friday 4 October 2013

- Fix crash from -J command 
  Thanks to Lluís Batlle i Rossell and Arnaud Mouiche for patches

- Avoid reading too much from /proc/net/rt_cache since that causes
  system slowness. 

- Improve EOF handling for half-closed connections
  Thanks to Catalin Patulea

- Send a banner message to report PAM error messages intended for the user
  Patch from Martin Donnelly

- Limit the size of decompressed payloads, avoids memory exhaustion denial
  of service 
  Thanks to Logan Lamb for reporting and investigating it. CVE-2013-4421
  https://secure.ucc.asn.au/hg/dropbear/rev/0bf76f54de6f

- Avoid disclosing existence of valid users through inconsistent delays
  Thanks to Logan Lamb for reporting. CVE-2013-4434
  https://secure.ucc.asn.au/hg/dropbear/rev/d7784616409a

- Update config.guess and config.sub for newer architectures

- Avoid segfault in server for locked accounts

- "make install" now installs manpages
  dropbearkey.8 has been renamed to dropbearkey.1
  manpage added for dropbearconvert

- Get rid of one second delay when running non-interactive commands


2013.58 - Thursday 18 April 2013

- Fix building with Zlib disabled, thanks to Hans Harder and cuma@freetz

- Use % as a separator for ports, fixes scp in multihop mode, from Hans Harder

- Reject logins for other users when running as non-root, from Hans Harder

- Disable client immediate authentication request by default, it prevents
  passwordless logins from working

2013.57 - Monday 15 April 2013

- Decreased connection setup time particularly with high latency connections,
  the number of round trips has been reduced for both client and server. 
  CPU time hasn't been changed.

- Client will send an initial key exchange guess to save a round trip.
  Dropbear implements an extension [email protected] to allow the first
  packet guess to succeed in wider circumstances than the standard behaviour.
  When communicating with other implementations the standard behaviour is used.

- Client side: when public key or password authentication with
  $DROPBEAR_PASSWORD is used an initial authentication request will
  be sent immediately rather than querying the list of available methods.
  This behaviour is enabled by CLI_IMMEDIATE_AUTH option (on by default),
  please let the Dropbear author know if it causes any interoperability
  problems.

- Implement client escape characters ~. (terminate session) and 
  ~^Z (background session)

- Server will more reliably clean up utmp when connection is closed, reported by
  Mattias Walström

- Don't crash if /dev/urandom isn't writable (RHEL5), thanks to Scott Case

- Add "-y -y" client option to skip host key checking, thanks to Hans Harder

- scp didn't work properly on systems using vfork(), thanks to Frank Van Uffelen

- Added IUTF8 terminal mode support (Linux and Mac OS). Not standardised yet
though probably will be soon

- Some verbose DROPBEAR_TRACE output is now hidden unless $DROPBEAR_TRACE2
  enviroment variable is set

- Fix using asymmetric MAC algorithms (broke in )

- Renamed configure.in to configure.ac to quieten autoconf, from Mike Frysinger

2013.56 - Thursday 21 March 2013

- Allow specifying cipher (-c) and MAC (-m) lists for dbclient

- Allow using 'none' cipher or MAC (off by default, use options.h). Encryption
  is used during authentication then disabled, similar to OpenSSH HPN mode

- Allow a user in immediately if the account has a blank password and blank
  passwords are enabled

- Include a few extra sources of entropy from /proc on Linux, hash private keys
  as well. Dropbear will also write gathered entropy back into /dev/urandom

- Added hmac-sha2-256 and hmac-sha2-512 support (off by default, use options.h)

- Don't sent bad address "localhost" for -R forward connections, 
  reported by Denis Bider

- Add "-B" runtime option to allow blank passwords

- Allow using IPv6 bracket notation for addresses in server "-p" option, from Ben Jencks

- A few improvements for Android from Reimar Döffinger

- Fix memory leak for TCP forwarded connections to hosts that timed out,
  reported by Norbert Benczúr. Appears to be a very long-standing bug.

- Fix "make clean" for out of tree builds

- Fix compilation when ENABLE_{SVR,CLI}_AGENTFWD are unset

2012.55 - Wednesday 22 February 2012

- Security: Fix use-after-free bug that could be triggered if command="..."
  authorized_keys restrictions are used.  Could allow arbitrary code execution
  or bypass of the command="..." restriction to an authenticated user.
  This bug affects releases 0.52 onwards. Ref CVE-2012-0920.
  Thanks to Danny Fullerton of Mantor Organization for reporting
  the bug.
  https://secure.ucc.asn.au/hg/dropbear/rev/818108bf7749

- Compile fix, only apply IPV6 socket options if they are available in headers
  Thanks to Gustavo Zacarias for the patch

- Overwrite session key memory on exit

- Fix minor memory leak in unusual PAM authentication configurations.
  Thanks to Stathis Voukelatos

- Other small code cleanups

2011.54 - Tuesday 8 November 2011

- Building statically works again, broke in 0.53 and 0.53.1

- Fix crash when forwarding with -R

- Fixed various leaks found by Klocwork analysis software, thanks to them for
  running it

- Set IPTOS_LOWDELAY for IPv6, thanks to Dave Taht

- Bind to sockets with IPV6_V6ONLY so that it works properly on systems
  regardless of the system-wide setting

- Added ALLOW_BLANK_PASSWORD option. Dropbear also now allows public key logins
  to accounts with a blank password. Thanks to Rob Landley

- Fixed case where "-K 1" keepalive for dbclient would cause a SSH_MSG_IGNORE
  packet to be sent

- Avoid some memory allocations in big number maths routines, improves
  performance slightly

- Fix symlink target for installdropbearmulti with DESTDIR set, thanks to
  Scottie Shore

- When requesting server allocated remote ports (-R 0:host:port) print a
  message informing what the port is, thanks to Ali Onur Uyar.

- New version numbering scheme.

Source repository has now migrated to Mercurial at 
https://secure.ucc.asn.au/hg/dropbear/graph/default

0.53.1 - Wednesday 2 March 2011

- -lcrypt needs to be before object files for static linking

- Compile fix when both client and agent forwarding are disabled

- Fix DROPBEAR_PRNGD_SOCKET mode

- Don't allow setting zlib memLevel since it seems buggy

0.53 - Thurs 24 February 2011

- Various performance/memory use improvements

- Client agent forwarding now works, using OpenSSH's ssh-agent

- Improve robustness of client multihop mode

- Fix a prime generation bug in bundled libtommath. This is unlikely to have
  generated any bad keys in the wild.
  See 
  https://bugzilla.redhat.com/show_bug.cgi?id=615088
  http://bugs.gentoo.org/show_bug.cgi?id=328383
  http://bugs.gentoo.org/show_bug.cgi?id=328409

- Attempt to build against system libtomcrypt/libtommath if available. This
  can be disabled with ./configure --enable-bundled-libtom

- Make -K (keepalive) and -I (idle timeout) work together sensibly in the client.
  The idle timeout is no longer reset by SSH_MSG_IGNORE packets.

- Add diffie-hellman-group14-sha1 key exchange method

- Compile fix if ENABLE_CLI_PROXYCMD is disabled

- /usr/bin/X11/xauth is now the default path

- Client remote forward (-L/-R) arguments now accept a listen address

- In uClinux avoid trashing the parent process when a session exits

- Blowfish is now disabled by default since it has large memory usage

- Add option to change zlib windowbits/memlevel. Use less memory by default

- DROPBEAR_SMALL_CODE is now disabled by default

- SSH_ORIGINAL_COMMAND environment variable is set by the server when an
  authorized_keys command is specified.

- Set SSH_TTY and SSH_CONNECTION environment variables in the server

- Client banner is now printed to standard error rather than standard output

- Capitalisation in many log messages has been made consistent. This may affect
  scripts that parse logfiles.

0.52 - Wed 12 November 2008

- Add "netcat-alike" option (-B) to dbclient, allowing Dropbear to tunnel
  standard input/output to a TCP port-forwarded remote host.

- Add "proxy command" support to dbclient, to allow using a spawned process for
  IO rather than a direct TCP connection. eg
	  dbclient remotehost
  is equivalent to
	  dbclient -J 'nc remotehost 22' remotehost
  (the hostname is still provided purely for looking up saved host keys)

- Combine netcat-alike and proxy support to allow "multihop" connections, with
  comma-separated host syntax.  Allows running

	  dbclient user1@host1,user2@host2,user3@host3

  to end up at host3 via the other two, using SSH TCP forwarding. It's a bit
  like onion-routing. All connections are established from the local machine.
  The comma-separated syntax can also be used for scp/rsync, eg

	  rsync -a -e dbclient m@gateway,m2@host,martello:/home/matt/ ~/backup/

  to bounce through a few hosts.

- Add -I "idle timeout" option (contributed by Farrell Aultman)

- Allow restrictions on authorized_keys logins such as restricting commands
  to be run etc. This is a subset of those allowed by OpenSSH, doesn't
  yet allow restricting source host.

- Use vfork() for scp on uClinux

- Default to PATH=/usr/bin:/bin for shells.

- Report errors if -R forwarding fails

- Add counter mode cipher support, which avoids some security problems with the
  standard CBC mode.

- Support [email protected] delayed compression for client/server. It can be
  required for the Dropbear server with the '-Z' option. This is useful for
  security as it avoids exposing the server to attacks on zlib by
  unauthenticated remote users, though requires client side support.

- options.h has been split into options.h (user-changable) and sysoptions.h
  (less commonly changed)

- Support "dbclient -s sftp" to specify a subsystem

- Fix a bug in replies to channel requests that could be triggered by recent
  versions of PuTTY

0.51 - Thu 27 March 2008

- Make a copy of password fields rather erroneously relying on getwpnam()
  to be safe to call multiple times

- If $SSH_ASKPASS_ALWAYS environment variable is set (and $SSH_ASKPASS is
  as well) always use that program, ignoring isatty() and $DISPLAY

- Wait until a process exits before the server closes a connection, so
  that an exit code can be sent. This fixes problems with exit codes not
  being returned, which could cause scp to fail.

0.50 - Wed 8 August 2007

- Add DROPBEAR_PASSWORD environment variable to specify a dbclient password

- Use /dev/urandom by default, since that's what everyone does anyway

- Correct vfork() use for uClinux in scp
  (thanks to Alex Landau)

- Exit with an exit code of 1 if dropbear can't bind to any ports
  (thanks to Nicolai Ehemann)

- Improve network performance and add a -W <receive_window> argument for
  adjusting the tradeoff between network performance and memory consumption.

- Fix a problem where reply packets could be sent during key exchange,
  in violation of the SSH spec. This could manifest itself with connections
  being terminated after 8 hours with new TCP-forward connections being
  established.

- Add -K <keepalive_time> argument, ensuring that data is transmitted
  over the connection at least every N seconds.

- dropbearkey will no longer generate DSS keys of sizes other than 1024
  bits, as required by the DSS specification. (Other sizes are still
  accepted for use to provide backwards compatibility).

0.49 - Fri 23 February 2007

- Security: dbclient previously would prompt to confirm a 
  mismatching hostkey but wouldn't warn loudly. It will now
  exit upon a mismatch. CVE-2007-1099

- Compile fixes, make sure that all variable definitions are at the start
  of a scope.

- Added -P pidfile argument to the server (from Swen Schillig)

- Add -N dbclient option for "no command"

- Add -f dbclient option for "background after auth"

- Add ability to limit binding to particular addresses, use 
  -p [address:]port, patch from Max-Gerd Retzlaff.

- Try to finally fix ss_family compilation problems (for old
  glibc systems)

- Fix finding relative-path server hostkeys when running daemonized

- Use $HOME in preference to that from /etc/passwd, so that
  dbclient can still work on broken systems.

- Fix various issues found by Klocwork defect analysis, mostly memory leaks
  and error-handling. Thanks to Klocwork for their service.

- Improve building in a separate directory

- Add compile-time LOG_COMMANDS option to log user commands

- Add '-y' flag to dbclient to unconditionally accept host keys,
  patch from Luciano Miguel Ferreira Rocha

- Return immediately for "sleep 10 & echo foo", rather than waiting
  for the sleep to return (pointed out by Rob Landley).
  
- Avoid hanging after exit in certain cases (such as scp)

- Various minor fixes, in particular various leaks reported by
  Erik Hovland
  
- Disable core dumps on startup

- Don't erase over every single buffer, since it was a bottleneck.
  On systems where it really matters, encrypted swap should be utilised.

- Read /dev/[u]random only once at startup to conserve kernel entropy

- Upgrade to LibTomCrypt 1.16 and LibTomMath 0.40

- Upgrade config.status and config.guess 

0.48.1 - Sat 11 March 2006

- Compile fix for scp

0.48 - Thurs 9 March 2006

- Check that the circular buffer is properly empty before
  closing a channel, which could cause truncated transfers
  (thanks to Tomas Vanek for helping track it down)

- Implement per-IP pre-authentication connection limits 
  (after some poking from Pablo Fernandez) CVE-2006-1206

- Exit gracefully if trying to connect to as SSH v1 server 
  (reported by Rushi Lala)

- Only read /dev/random once at startup when in non-inetd mode

- Allow ctrl-c to close a dbclient password prompt (may
  still have to press enter on some platforms)

- Merged in uClinux patch for inetd mode

- Updated to scp from OpenSSH 4.3p2 - fixes a security issue
  where use of system() could cause users to execute arbitrary
  code through malformed filenames, ref CVE-2006-0225

0.47 - Thurs Dec 8 2005

- SECURITY: fix for buffer allocation error in server code, could potentially
  allow authenticated users to gain elevated privileges. All multi-user systems
  running the server should upgrade (or apply the patch available on the