* New features
- "redirect" also supports "exec" and not only "connect".
- PKCS#11 engine DLL updated to version 0.4.7.
* Bugfixes
- Fixed premature cron thread initialization causing hangs.
- Fixed "verifyPeer = yes" on OpenSSL <= 1.0.1.
- Fixed pthreads support on OpenSolaris.
* New features
- PKCS#11 engine DLL updated to version 0.4.5.
- Default engine UI set with ENGINE_CTRL_SET_USER_INTERFACE.
- Key file name added into the passphrase console prompt.
- Performance optimization in memory leak detection.
* Bugfixes
- Fixed crashes with the OpenSSL 1.1.0 branch.
- Fixed certificate verification with "verifyPeer = yes"
and "verifyChain = no" (the default), while the peer
only returns a single certificate.
* Security bugfixes
- OpenSSL DLLs updated to version 1.0.2k.
https://www.openssl.org/news/secadv/20170126.txt
* New features
- DH ciphersuites are now disabled by default.
- The daily server DH parameter regeneration is only performed if
DH ciphersuites are enabled in the configuration file.
- "checkHost" and "checkEmail" were modified to require either
"verifyChain" or "verifyPeer" (thx to Małorzata Olszówka).
* Bugfixes
- Fixed setting default ciphers.
Changelog:
Version 5.39, 2017.01.01, urgency: LOW
* New features
- PKCS#11 engine (pkcs11.dll) added to the Win32 build.
- Per-destination TLS session cache added for the client mode.
- The new "logId" parameter "process" added to log PID values.
- Added support for the new SSL_set_options() values.
- Updated the manual page.
- Obsolete references to "SSL" replaced with "TLS".
* Bugfixes
- Fixed "logId" parameter to also work in inetd mode.
- "delay = yes" properly enforces "failover = prio".
- Fixed fd_set allocation size on Win64.
- Fixed reloading invalid configuration file on Win32.
- Fixed resolving addresses with unconfigured network interfaces.
Version 5.38, 2016.11.26, urgency: MEDIUM
* New features
- "sni=" can be used to prevent sending the SNI extension.
- The AI_ADDRCONFIG resolver flag is used when available.
- Merged Debian 06-lfs.patch (thx Peter Pentchev).
* Bugfixes
- Fixed a memory allocation bug causing crashes with OpenSSL 1.1.0.
- Fixed error handling for mixed IPv4/IPv6 destinations.
- Merged Debian 08-typos.patch (thx Peter Pentchev).
Version 5.37, 2016.11.06, urgency: MEDIUM
* Bugfixes
- OpenSSL DLLs updated to version 1.0.2j (stops crashes).
- The default SNI target (not handled by any slave service)
is handled by the master service rather than rejected.
- Removed thread synchronization in the FORK threading model.
Version 5.36, 2016.09.22, urgency: HIGH
* Security bugfixes
- OpenSSL DLLs updated to version 1.0.2i.
https://www.openssl.org/news/secadv_20160922.txt
* New features
- Added support for OpenSSL 1.1.0 built with "no-deprecated".
- Removed direct zlib dependency.
Update stunnel to 5.35.
- Add patch to provide an explicit chroot option to the default
configuration sample (option is documented but not found within
the default conf file). While here, enable setuid/setgid as
stunnel user/group creations are handled by package.
- Rework SUBSTs so that they apply to the correct sample
config file.
Changelog:
Version 5.35, 2016.07.18, urgency: HIGH
* Bugfixes
- Fixed incorrectly enforced client certificate requests.
- Only default to SO_EXCLUSIVEADDRUSE on Vista and later.
- Fixed thread safety of the configuration file reopening.
Version 5.34, 2016.07.05, urgency: HIGH
* Security bugfixes
- Fixed malfunctioning "verify = 4".
* New features
- Bind sockets with SO_EXCLUSIVEADDRUSE on WIN32.
- Added three new service-level options: requireCert, verifyChain,
and verifyPeer for fine-grained certificate verification control.
- Improved compatibility with the current OpenSSL 1.1.0-dev tree.
Version 5.33, 2016.06.23, urgency: HIGH
* New features
- Improved memory leak detection performance and accuracy.
- Improved compatibility with the current OpenSSL 1.1.0-dev tree.
- SNI support also enabled on OpenSSL 0.9.8f and later (thx to
Guillermo Rodriguez Garcia).
- Added support for PKCS #12 (.p12/.pfx) certificates (thx to
Dmitry Bakshaev).
* Bugfixes
- Fixed a TLS session caching memory leak (thx to Richard Kraemer).
Before stunnel 5.27 this leak only emerged with sessiond enabled.
- Yet another WinCE socket fix (thx to Richard Kraemer).
- Fixed passphrase/pin dialogs in tstunnel.exe.
- Fixed a FORK threading build regression bug.
- OPENSSL_NO_DH compilation fix (thx to Brian Lin).
Version 5.32, 2016.05.03, urgency: HIGH
* Security bugfixes
- OpenSSL DLLs updated to version 1.0.2h.
https://www.openssl.org/news/secadv_20160503.txt
* New features
- New "socket = a:IPV6_V6ONLY=yes" option to only bind IPv6.
- Memory leak detection.
- Improved compatibility with the current OpenSSL 1.1.0-dev tree.
- Added/fixed Red Hat scripts (thx to Andrew Colin Kissa).
* Bugfixes
- Workaround for a WinCE sockets quirk (thx to Richard Kraemer).
- Fixed data alignment on 64-bit MSVC (thx to Yuris W. Auzins).
Changelog:
Version 5.31, 2016.03.01, urgency: HIGH
* Security bugfixes
- OpenSSL DLLs updated to version 1.0.2g.
https://www.openssl.org/news/secadv_20160301.txt
* New features
- Added logging the list of client CAs requested by the server.
- Improved compatibility with the current OpenSSL 1.1.0-dev tree.
* Bugfixes
- Only reset the watchdog if some data was actually transferred.
- A workaround implemented for the unexpected exceptfds set by
select() on WinCE 6.0 (thx to Richard Kraemer).
Version 5.30, 2016.01.28, urgency: HIGH
Security bugfixes
OpenSSL DLLs updated to version 1.0.2f.
https://www.openssl.org/news/secadv_20160128.txt
New features
Improved compatibility with the current OpenSSL 1.1.0-dev tree.
Added OpenSSL autodetection for the recent versions of Xcode.
Bugfixes
Fixed references to /etc removed from stunnel.init.in.
Stopped even trying -fstack-protector on unsupported platforms
(thx to Rob Lockhart).
Changelog:
Version 5.29, 2016.01.08, urgency: LOW
* New features
- New WIN32 icons.
- Performance improvement: rwlocks used for locking with pthreads.
* Bugfixes
- Compilation fix for *BSD.
- Fixed configuration file reload for relative stunnel.conf path
on Unix.
- Fixed ignoring CRLfile unless CAfile was also specified (thx
to Strukov Petr).
Changelog:
Version 5.28, 2015.12.11, urgency: HIGH
* New features
- Build matrix (.travis.yml) extended with ./configure options.
- mingw.mak updated to build tstunnel.exe (thx to Jose Alf.).
* Bugfixes
- Fixed incomplete initialization.
- Fixed UCONTEXT threading on OSX.
- Fixed exit codes for information requests (as
in "stunnel -version" or "stunnel -help").
Version 5.27, 2015.12.03, urgency: MEDIUM
* Security bugfixes
- OpenSSL DLLs updated to version 1.0.2e.
https://www.openssl.org/news/secadv_20151203.txt
* New features
- Automated build testing configured with .travis.yml.
- Added reading server certificates from hardware engines.
For example: cert = id_45
- Only attempt to use potentially harmful compiler or linker
options if gcc was detected.
- /opt/csw added to the OpenSSL directory lookup list.
- mingw.mak updates (thx to Jose Alf.).
- TODO list updated.
Version 5.26, 2015.11.06, urgency: MEDIUM
* Bugfixes
- Compilation fixes for OSX, *BSD and Solaris.
Version 5.25, 2015.11.02, urgency: MEDIUM
* New features
- SMTP client protocol negotiation support for
"protocolUsername", "protocolPassword", and
"protocolAuthentication" (thx to Douglas Harris).
- New service-level option "config" to specify configuration
commands introduced in OpenSSL 1.0.2 (thx to Stephen Wall).
- The global option "foreground" now also accepts "quiet"
parameter, which does not enable logging to stderr.
- Manual page updated.
- Obsolete OpenSSL engines removed from the Windows build:
4758cca, aep, atalla, cswift, nuron, sureware.
- Improved compatibility with the current OpenSSL 1.1.0-dev tree:
gracefully handle symbols renamed from SSLeay* to OpenSSL*.
* Bugfixes
- Fixed the "s_poll_wait returned 1, but no descriptor
is ready" internal error.
- Fixed "exec" hangs due to incorrect thread-local
storage handling (thx to Philip Craig).
- Fixed PRNG initialization (thx to Philip Craig).
- Setting socket options no longer performed on PTYs.
- Fixed 64-bit Windows build.
Version 5.24, 2015.10.08, urgency: MEDIUM
* New features
- Custom CRL verification was replaced with the internal
OpenSSL functionality.
- *BSD support for "transparent = destination" and
client-side "protocol = socks". This feature should
work at least on FreeBSD, OpenBSD and OS X.
- Added a new "protocolDomain" option for the NTLM
authentication (thx to Andreas Botsikas).
- Improved compatibility of the NTLM phase 1 message (thx
to Andreas Botsikas).
- "setuid" and "setgid" options are now also available
in service sections. They can be used to set owner
and group of the Unix socket specified with "accept".
- Added support for the new OpenSSL 1.0.2 SSL options.
- Added OPENSSL_NO_EGD support (thx to Bernard Spil).
- VC autodetection added to makew32.bat (thx to Andreas
Botsikas).
* Bugfixes
- Fixed the RESOLVE [F0] TOR extension support in SOCKS5.
- Fixed the error code reported on the failed bind()
requests.
- Fixed the sequential log id with the FORK threading.
- Restored the missing Microsoft.VC90.CRT.manifest file.
Version 5.23, 2015.09.02, urgency: LOW
* New features
- Client-side support for the SOCKS protocol.
See https://www.stunnel.org/socksvpn.html for details.
- Reject SOCKS requests to connect loopback addresses.
- New service-level option "OCSPnonce".
The default value is "OCSPnonce = no".
- Win32 directory structure rearranged. The installer
script provides automatic migration for common setups.
- Added Win32 installer option to install stunnel for the
current user only. This feature does not deploy the NT
service, but it also does not require aministrative
privileges to install and configure stunnel.
- stunnel.cnf was renamed to openssl.cnf in order to
to prevent users from mixing it up with stunnel.conf.
- Win32 desktop is automatically refreshed when the icon
is created or removed.
- The ca-certs.pem file is now updated on stunnel upgrade.
- Inactive ports were removed from the PORTS file.
- Added IPv6 support to the transparent proxy code.
* Bugfixes
- Compilation fix for OpenSSL version older than 1.0.0.
- Compilation fix for mingw.
Version 5.22, 2015.07.30, urgency: HIGH
* New features
- "OCSPaia = yes" added to the configuration file templates.
- Improved double free detection.
* Bugfixes
- Fixed a number of OCSP bugs. The most severe of those
bugs caused stunnel to treat OCSP responses that failed
OCSP_basic_verify() checks as if they were successful.
- Fixed the passive IPv6 resolver (broken in stunnel 5.21).
Version 5.21, 2015.07.27, urgency: MEDIUM
* New features
- Signal names are displayed instead of numbers.
- First resolve IPv4 addresses on passive resolver requests.
This speeds up stunnel startup on Win32 with a slow/defunct
DNS service.
- The "make check" target was modified to only build Win32
executables when stunnel is built from a git repository (thx
to Peter Pentchev).
- More elaborate descriptions were added to the warning about
using "verify = 2" without "checkHost" or "checkIP".
- Performance optimization was performed on the debug code.
* Bugfixes
- Fixed the FORK and UCONTEXT threading support.
- Fixed "failover=prio" (broken since stunnel 5.15).
- Added a retry when sleep(3) was interrupted by a signal
in the cron thread scheduler.
Problems found locating distfiles:
Package f-prot-antivirus6-fs-bin: missing distfile fp-NetBSD.x86.32-fs-6.2.3.tar.gz
Package f-prot-antivirus6-ws-bin: missing distfile fp-NetBSD.x86.32-ws-6.2.3.tar.gz
Package libidea: missing distfile libidea-0.8.2b.tar.gz
Package openssh: missing distfile openssh-7.1p1-hpn-20150822.diff.bz2
Package uvscan: missing distfile vlp4510e.tar.Z
Otherwise, existing SHA1 digests verified and found to be the same on
the machine holding the existing distfiles (morden). All existing
SHA1 digests retained for now as an audit trail.
Changelog:
Version 5.20, 2015.07.09, urgency: HIGH
* Security bugfixes
- OpenSSL DLLs updated to version 1.0.2d.
https://www.openssl.org/news/secadv_20150709.txt
* New features
- poll(2) re-enabled on MacOS X 10.5 and later.
- Xcode SDK is automatically used on MacOS X if no other
locally installed OpenSSL directory is found.
- The SSL library detection algorithm was made a bit smarter.
- Warnings about insecure authentication were modified to
include the name of the affected service section.
- A warning was added to stunnel.init if no pid file was
specified in the configuration file (thx to Peter Pentchev).
- Optional debugging symbols are included in the Win32 installer.
- Documentation updates (closes Debian bug #781669).
* Bugfixes
- Signal pipe reinitialization added to prevent turning the
main accepting thread into a busy wait loop when an external
condition breaks the signal pipe. This bug was found to
surface on Win32, but other platforms may also be affected.
- Fixed removing the disabled taskbar icon.
- Generated temporary DH parameters are used for configuration
reload instead of the static defaults.
- LSB compatibility fixes added to the stunnel.init script (thx
to Peter Pentchev).
- Fixed the manual page headers (thx to Gleydson Soares).
Version 5.19, 2015.06.16, urgency: MEDIUM:
* New features
- OpenSSL DLLs updated to version 1.0.2c.
- Added a runtime check whether COMP_zlib() method is implemented
in order to improve compatibility with the Debian OpenSSL build.
* Bugfixes
- Improved socket error handling.
- Cron thread priority on Win32 platform changed to
THREAD_PRIORITY_LOWEST to improve portability.
- Makefile bugfixes for stunnel 5.18 regressions.
- Fixed some typos in docs and scripts (thx to Peter Pentchev).
- Fixed a log level check condition (thx to Peter Pentchev).
Version 5.18, 2015.06.12, urgency: MEDIUM:
* New features
- OpenSSL DLLs updated to version 1.0.2b.
https://www.openssl.org/news/secadv_20150611.txt
- Added "include" configuration file option to include all
configuration file parts located in a specified directory.
- Log file is reopened every 24 hours. With "log = overwrite"
this feature can be used to prevent filling up disk space.
- Temporary DH parameters are refreshed every 24 hours, unless
static DH parameters were provided in the certificate file.
- Unique initial DH parameters are distributed with each release.
- Warnings are logged on potentially insecure authentication.
- Improved compatibility with the current OpenSSL 1.1.0-dev tree:
removed RLE compression support, etc.
- Updated stunnel.spec (thx to Bill Quayle).
* Bugfixes
- Fixed handling of dynamic connect targets.
- Fixed handling of trailing whitespaces in the Content-Length
header of the NTLM authentication.
- Fixed --sysconfdir and --localstatedir handling (thx to
Dagobert Michelsen).
Version 5.07, 2014.11.01, urgency: MEDIUM:
* New features
- Several SMTP server protocol negotiation improvements.
- Added UTF-8 byte order marks to stunnel.conf templates.
- DH parameters are no longer generated by "make cert".
The hardcoded DH parameters are sufficiently secure,
and modern TLS implementations will use ECDH anyway.
- Updated manual for the "options" configuration file option.
- Added support for systemd 209 or later.
- New --disable-systemd ./configure option.
- setuid/setgid commented out in stunnel.conf-sample.
* Bugfixes
- Added support for UTF-8 byte order mark in stunnel.conf.
- Compilation fix for OpenSSL with disabled SSLv2 or SSLv3.
- Non-blocking mode set on inetd and systemd descriptors.
- shfolder.h replaced with shlobj.h for compatibility
with modern Microsoft compilers.
Version 5.06, 2014.10.15, urgency: HIGH:
* Security bugfixes
- OpenSSL DLLs updated to version 1.0.1j.
https://www.openssl.org/news/secadv_20141015.txt
- The insecure SSLv2 protocol is now disabled by default.
It can be enabled with "options = -NO_SSLv2".
- The insecure SSLv3 protocol is now disabled by default.
It can be enabled with "options = -NO_SSLv3".
- Default sslVersion changed to "all" (also in FIPS mode)
to autonegotiate the highest supported TLS version.
* New features
- Added missing SSL options to match OpenSSL 1.0.1j.
- New "-options" commandline option to display the list
of supported SSL options.
* Bugfixes
- Fixed FORK threading build regression bug.
- Fixed missing periodic Win32 GUI log updates.
Version 5.05, 2014.10.10, urgency: MEDIUM:
* New features
- Asynchronous communication with the GUI thread for faster
logging on Win32.
- systemd socket activation (thx to Mark Theunissen).
- The parameter of "options" can now be prefixed with "-"
to clear an SSL option, for example:
"options = -LEGACY_SERVER_CONNECT".
- Improved "transparent = destination" manual page (thx to
Vadim Penzin).
* Bugfixes
- Fixed POLLIN|POLLHUP condition handling error resulting
in prematurely closed (truncated) connection.
- Fixed a null pointer dereference regression bug in the
"transparent = destination" functionality (thx to
Vadim Penzin). This bug was introduced in stunnel 5.00.
- Fixed startup thread synchronization with Win32 GUI.
- Fixed erroneously closed stdin/stdout/stderr if specified
as the -fd commandline option parameter.
- A number of minor Win32 GUI bugfixes and improvements.
- Merged most of the Windows CE patches (thx to Pierre Delaage).
- Fixed incorrect CreateService() error message on Win32.
- Implemented a workaround for defective Cygwin file
descriptor passing breaking the libwrap support:
http://wiki.osdev.org/Cygwin_Issues#Passing_file_descriptors
Version 5.04, 2014.09.21, urgency: LOW:
* New features
- Support for local mode ("exec" option) on Win32.
- Support for UTF-8 config file and log file.
- Win32 UTF-16 build (thx to Pierre Delaage for support).
- Support for Unicode file names on Win32.
- A more explicit service description provided for the
Windows SCM (thx to Pierre Delaage).
- TCP/IP dependency added for NT service in order to prevent
initialization failure at boot time.
- FIPS canister updated to version 2.0.8 in the Win32 binary
build.
* Bugfixes
- load_icon_default() modified to return copies of default icons
instead of the original resources to prevent the resources
from being destroyed.
- Partially merged Windows CE patches (thx to Pierre Delaage).
- Fixed typos in stunnel.init.in and vc.mak.
- Fixed incorrect memory allocation statistics update in
str_realloc().
- Missing REMOTE_PORT environmental variable is provided to
processes spawned with "exec" on Unix platforms.
- Taskbar icon is no longer disabled for NT service.
- Fixed taskbar icon initialization when commandline options are
specified.
- Reportedly more compatible values used for the dwDesiredAccess
parameter of the CreateFile() function (thx to Pierre Delaage).
- A number of minor Win32 GUI bugfixes and improvements.
Version 5.03, 2014.08.07, urgency: HIGH:
* Security bugfixes
- OpenSSL DLLs updated to version 1.0.1i.
See https://www.openssl.org/news/secadv_20140806.txt
* New features
- FIPS autoconfiguration cleanup.
- FIPS canister updated to version 2.0.6.
- Improved SNI diagnostic logging.
* Bugfixes
- Compilation fixes for old versions of OpenSSL.
- Fixed whitespace handling in the stunnel.init script.
Version 5.02, 2014.06.09, urgency: HIGH:
* Security bugfixes
- OpenSSL DLLs updated to version 1.0.1h.
See https://www.openssl.org/news/secadv_20140605.txt
* New features
- Major rewrite of the protocol.c interface: it is now possible to add
protocol negotiations at multiple connection phases, protocols can
individually decide whether the remote connection will be
established before or after SSL/TLS is negotiated.
- Heap memory blocks are wiped before release. This only works for
block allocated by stunnel, and not by OpenSSL or other libraries.
- The safe_memcmp() function implemented with execution time not
dependent on the compared data.
- Updated the stunnel.conf and stunnel.init templates.
- Added a client-mode example to the manual.
* Bugfixes
- Fixed "failover = rr" broken since version 5.00.
- Fixed "taskbar = no" broken since version 5.00.
- Compilation fix for missing SSL_OP_MSIE_SSLV2_RSA_PADDING option.
Do it for all packages that
* mention perl, or
* have a directory name starting with p5-*, or
* depend on a package starting with p5-
like last time, for 5.18, where this didn't lead to complaints.
Let me know if you have any this time.
Changelog:
Version 5.01, unreleased, urgency: HIGH:
* Security bugfixes
- OpenSSL DLLs updated to version 1.0.1g.
This version mitigates TLS heartbeat read overrun (CVE-2014-0160).
* New features
- X.509 extensions added to the created self-signed stunnel.pem.
- "FIPS = no" also allowed in non-FIPS builds of stunnel.
- Search all certificates with the same subject name for a matching
public key rather than only the first one (thx to Leon Winter).
- Create logs in the local application data folder if stunnel folder
is not writable on Win32.
* Bugfixes
- close_notify not sent when SSL still has some data buffered.
- Protocol negotiation with server-side SNI fixed.
- A Mac OS X missing symbols fixed.
- Win32 configuration file reload crash fixed.
- Added s_pool_free() on exec+connect service retires.
- Line-buffering enforced on stderr output.
Of utmost importance: it fixes CVE 2014-0016.
Thanks to jgw (Jeff W) _AT_ sdf.org for working on the same patch
independently.
In before the freeze! Changelog follows.
Security bugfixes
Added PRNG state update in fork threading (CVE-2014-0016).
New global configuration file defaults
Default "fips" option value is now "no", as FIPS mode is only helpful for compliance, and never for actual security.
Default "pid" is now "", i.e. not to create a pid file at startup.
New service-level configuration file defaults
Default "ciphers" updated to "HIGH:MEDIUM:+3DES:+DH:!aNULL:!SSLv2" due to AlFBPPS attack and bad performance of DH ciphersuites.
Default "libwrap" setting is now "no" to improve performance.
New features
OpenSSL DLLs updated to version 1.0.1f.
zlib DLL updated to version 1.2.8.
autoconf scripts upgraded to version 2.69.
TLS 1.1 and TLS 1.2 are now allowed in the FIPS mode.
New service-level option "redirect" to redirect SSL client connections on authentication failures instead of rejecting them.
New global "engineDefault" configuration file option to control which OpenSSL tasks are delegated to the current engine. Available tasks: ALL, RSA, DSA, ECDH, ECDSA, DH, RAND, CIPHERS, DIGESTS, PKEY, PKEY_CRYPTO, PKEY_ASN1.
New service-level configuration file option "engineId" to select the engine by identifier, e.g. "engineId = capi".
New global configuration file option "log" to control whether to append (the default), or to overwrite log file while (re)opening.
Different taskbar icon colors to indicate the service state.
New global configuration file options "iconIdle", "iconActive", and "iconError" to select status icon on GUI taskbar.
Removed the limit of 63 stunnel.conf sections on Win32 platform.
Installation of a sample certificate was moved to a separate "cert" target in order to allow unattended (e.g. scripted) installations.
Reduced length of the logged thread identifier. It is still based on the OS thread ID, and thus not unique over long periods of time.
Improved readability of error messages printed when stunnel refuses to start due to a critical error.
Bugfixes
LD_PRELOAD Solaris compatibility bug fixed (thx to Norm Jacobs).
CRYPTO_NUM_LOCKS replaced with CRYPTO_num_locks() to improve binary compatibility with diverse builds of OpenSSL (thx to Norm Jacobs).
Corrected round-robin failover behavior under heavy load.
Numerous fixes in the engine support code.
On Win32 platform .rnd file moved from c:\ to the stunnel folder.
- Fixed a regression bug introduced in version 4.55 causing random
crashes on several platforms, including Windows 7.
- Fixed incorrect "stunnel -exit" process synchronisation.
- Fixed FIPS detection with new versions of the OpenSSL library.
- Failure to open the log file at startup is no longer ignored.
a) refer 'perl' in their Makefile, or
b) have a directory name of p5-*, or
c) have any dependency on any p5-* package
Like last time, where this caused no complaints.
Changelog:
Version 4.55, 2013.03.03, urgency: HIGH:
Security bugfix
OpenSSL updated to version 1.0.1e in Win32/Android builds.
Buffer overflow vulnerability fixed in the NTLM authentication of the CONNECT protocol negotiation. See https://www.stunnel.org/CVE-2013-1762.html for details.
New features
SNI wildcard matching in server mode.
Terminal version of stunnel (tstunnel.exe) build for Win32.
Bugfixes
Fixed write half-close handling in the transfer() function (thx to Dustin Lundquist).
Fixed EAGAIN error handling in the transfer() function (thx to Jan Bee).
Restored default signal handlers before execvp() (thx to Michael Weiser).
Fixed memory leaks in protocol negotiation (thx to Arthur Mesh).
Fixed a file descriptor leak during configuration file reload (thx to Arthur Mesh).
Closed SSL sockets were removed from the the transfer() c->fds poll.
Minor fix in handling exotic inetd-mode configurations.
WCE compilation fixes.
IPv6 compilation fix in protocol.c.
Windows installer fixes.
New Win32 features
FIPS module updated to version 2.0.
OpenSSL DLLs updated to version 1.0.1c.
zlib DLL updated to version 1.2.7.
Engine DLLs added: 4758cca, aep, atalla, capi, chil, cswift, gmp, gost, nuron, padlock, sureware, ubsec.
Other new features
"session" option renamed to more readable "sessionCacheTimeout". The old name remains accepted for backward compatibility.
New service-level "sessionCacheSize" option to control session cache size.
New service-level option "reset" to control whether TCP RST flag is used to indicate errors. The default value is "reset = yes".
New service-level option "renegotiation" to disable SSL renegotiation. This feature is based on a public-domain patch by Janusz Dziemidowicz.
New FreeBSD socket options: IP_FREEBIND, IP_BINDANY, IPV6_BINDANY (thx to Janusz Dziemidowicz).
New parameters to configure TLS v1.1/v1.2 with OpenSSL version 1.0.1 or higher (thx to Henrik Riomar).
Bugfixes
Fixed "Application Failed to Initialize Properly (0xc0150002)" error.
Fixed missing SSL state debug log entries.
Fixed a race condition in libwrap code resulting in random stalls (thx to Andrew Skalski).
Session cache purged at configuration file reload to reduce memory leak. Remaining leak of a few kilobytes per section is yet to be fixed.
Fixed regression bug in "transparent = destination" functionality (thx to Stefan Lauterbach). This bug was introduced in stunnel 4.51.
"transparent = destination" is now a valid endpoint in inetd mode.
"delay = yes" fixed to work even if specified *after* "connect" option.
Multiple "connect" targets fixed to also work with delayed resolver.
The number of resolver retries of EAI_AGAIN error has been limited to 3 in order to prevent infinite loops.
Fix some directory owner/group rights and take over maintainership as I
use it almost daily.
Changelog:
Version 4.53, 2012.03.19, urgency: MEDIUM:
* New features
- Added client-mode "sni" option to directly control the value of
TLS Server Name Indication (RFC 3546) extension.
- Added support for IP_FREEBIND socket option with a pached Linux kernel.
- Glibc-specific dynamic allocation tuning was applied to help unused memory
deallocation.
- Non-blocking OCSP implementation.
* Bugfixes
- Compilation fixes for old versions of OpenSSL (tested against 0.9.6).
- Usage of uninitialized variables fixed in exec+connect services.
- Occasional logging subsystem crash with exec+connect services.
- OpenBSD compilation fix (thx to Michele Orru').
- Session id context initialized with session name rather than a constant.
- Fixed handling of a rare inetd mode use case, where either stdin or stdout
is a socket, but not both of them at the same time.
- Fixed missing OPENSSL_Applink http://www.openssl.org/support/faq.html#PROG2
- Fixed crash on termination with FORK threading model.
- Fixed dead canary after configuration reload with open connections.
- Fixed missing file descriptors passed to local mode processes.
- Fixed required jmp_buf alignment on Itanium platform.
- Removed creating /dev/zero in the chroot jail on Solaris platform.
- Fixed detection of WSAECONNREFUSED Winsock error.
- Missing Microsoft.VC90.CRT.manifest added to Windows installer.
Version 4.52, 2012.01.12, urgency: MEDIUM:
* Bugfixes
- Fixed write closure notification for non-socket file descriptors.
- Removed a line logged to stderr in inetd mode.
- Fixed "Socket operation on non-socket" error in inetd mode on Mac OS X
platform.
- Removed direct access to the fields of the X509_STORE_CTX data structure.
Version 4.51, 2012.01.09, urgency: MEDIUM:
* New features
- Updated Win32 binary distribution OpenSSL DLLs to version 0.9.8s-fips.
- Updated Android binary OpenSSL to version 1.0.0f.
- Zlib support added to Win32 and Android binary builds.
- New "compression = deflate" global option to enable RFC 2246 compresion.
For compatibility with previous versions "compression = zlib" and
"compression = rle" also enable the deflate (RFC 2246) compression.
- Separate default ciphers and sslVersion for "fips = yes" and "fips = no".
- UAC support for editing configuration file with Windows GUI.
* Bugfixes
- Fixed exec+connect sections.
- Added a workaround for broken Android getaddrinfo():
http://stackoverflow.com/questions/7818246/segmentation-fault-in-getaddrinfo
Version 4.50, 2011.12.03, urgency: MEDIUM:
New features
Added Android port.
Updated INSTALL.FIPS.
Bugfixes
Fixed internal memory allocation problem in inetd mode.
Fixed FIPS mode on Microsoft Vista, Server 2008, and Windows 7. This fix required to compile OpenSSL FIPS-compliant DLLs with MSVC 9.0, instead of MSVC 10.0. msvcr100.dll was replaced with msvcr90.dll. GPL compatibility issues are explained in the GPL FAQ: http://www.gnu.org/licenses/gpl-faq.html#WindowsRuntimeAndGPL
POP3 server-side protocol negotiation updated to report STLS capability (thx to Anthony Morgan).
Version 4.49, 2011.11.28, urgency: MEDIUM:
Bugfixes
Missing Microsoft Visual C++ Redistributable (msvcr100.dll) required by FIPS-compliant OpenSSL library was added to the Windows installer.
A bug was fixed causing crashes on MacOS X and some other platforms.
Version 4.48, 2011.11.26, urgency: MEDIUM:
New features
FIPS support on Win32 platform added. OpenSSL 0.9.8r DLLs based on FIPS 1.2.3 canister are included with this version of stunnel. FIPS mode can be disabled with "fips = no" configuration file option.
Bugfixes
Fixed canary initialization problem on Win32 platform.
Version 4.47, 2011.11.21, urgency: MEDIUM:
Internal improvements
CVE-2010-3864 workaround improved to check runtime version of OpenSSL rather than compiled version, and to allow OpenSSL 0.x.x >= 0.9.8p.
Encoding of man page sources changed to UTF-8.
Bugfixes
Handling of socket/SSL close in transfer() function was fixed.
Logging was modified to save and restore system error codes.
Option "service" was restricted to Unix, as since stunnel 4.42 it wasn't doing anything useful on Windows platform.
Changelog:
Version 4.46, 2011.11.04, urgency: LOW:
* New features
- Added Unix socket support (e.g. "connect = /var/run/stunnel/socket").
- Added "verify = 4" mode to ignore CA chain and only verify peer certificate.
- Removed the limit of 16 IP addresses for a single 'connect' option.
- Removed the limit of 256 stunnel.conf sections in PTHREAD threading model.
It is still not possible have more than 63 sections on WIN32 platform.
http://msdn.microsoft.com/en-us/library/windows/desktop/ms740141(v=vs.85).aspx
* Optimizations
- Reduced per-connection memory usage.
- Performed a major refactoring of internal data structures. Extensive
internal testing was performed, but some regression bugs are expected.
* Bugfixes
- Fixed WIN32 compilation with Mingw32.
- Fixed non-blocking API emulation layer in UCONTEXT threading model.
- Fixed signal handling in UCONTEXT threading model.
set in PKG_SYSCONFDIR variable, so it is passed down to Makefile.
Configuration final path ends up being etc/stunnel/stunnel/stunnel.conf,
which is wrong.
- New features
- New verify level 0 to request and ignore peer certificate. This
feature is useful with the new Windows GUI menu to save cached peer
certificate chains, as SSL client certificates are not sent by default.
- Manual page has been updated.
- Removed support for changing Windows Service name with "service" option.
- Hardcoded 2048-bit DH parameters are used as a fallback if DH parameters
are not provided in stunnel.pem.
- Default "ciphers" value updated to prefer ECDH:
"ALL:!SSLv2:!aNULL:!EXP:!LOW:-MEDIUM:RC4:+HIGH".
- Default ECDH curve updated to "prime256v1".
- Removed support for temporary RSA keys (used in obsolete export ciphers).
- Bugfixes
- The -quiet commandline option was applied to *all* message boxes.
- Silent install (/S option) no longer attempts to create stunnel.pem.
Version 4.39, 2011.07.06, urgency: LOW:
New features
New Win32 installer module to build self-signed stunnel.pem.
Added configuration file editing with Windows GUI.
Added log file reopening file editing with Windows GUI. It might be useful to also implement log file rotation.
Improved configuration file reload with Windows GUI.
Version 4.38, 2011.06.28, urgency: MEDIUM:
New features
Server-side SNI implemented (RFC 3546 section 3.1) with a new service-level option "nsi".
"socket" option also accepts "yes" and "no" for flags.
Nagle's algorithm is now disabled by default for improved interactivity.
Bugfixes
A compilation fix was added for OpenSSL version < 1.0.0.
Signal pipe set to non-blocking mode. This bug caused hangs of stunnel features based on signals, e.g. local mode, FORK threading, or configuration file reload on Unix. Win32 platform was not affected.
Version 4.37, 2011.06.17, urgency: MEDIUM:
New features
Client-side SNI implemented (RFC 3546 section 3.1).
Default "ciphers" changed from the OpenSSL default to a more secure and faster "RC4-MD5:HIGH:!aNULL:!SSLv2". A paranoid (and usually slower) setting would be "HIGH:!aNULL:!SSLv2".
Recommended "options = NO_SSLv2" added to the sample stunnel.conf file.
Default client method upgraded from SSLv3 to TLSv1. To connect servers without TLS support use "sslVersion = SSLv3" option.
Improved --enable-fips and --disable-fips ./configure option handling.
On startup stunnel now compares the compiled version of OpenSSL against the running version of OpenSSL. A warning is logged on mismatch.
Bugfixes
Non-blocking socket handling in local mode fixed (Debian bug #626856).
UCONTEXT threading mode fixed.
Removed the use of gcc Thread-Local Storage for improved portability.
va_copy macro defined for platforms that do not have it.
Fixed "local" option parsing on IPv4 systems.
Solaris compilation fix (redefinition of "STR").
Version 4.36, 2011.05.03, urgency: LOW:
New features
Updated Win32 DLLs for OpenSSL 1.0.0d.
Dynamic memory management for strings manipulation: no more static STRLEN limit, lower stack footprint.
Strict public key comparison added for "verify = 3" certificate checking mode (thx to Philipp Hartwig).
Backlog parameter of listen(2) changed from 5 to SOMAXCONN: improved behavior on heavy load.
Example tools/stunnel.service file added for systemd service manager.
Bugfixes
Missing pthread_attr_destroy() added to fix memory leak (thx to Paul Allex and Peter Pentchev).
Fixed the incorrect way of setting FD_CLOEXEC flag.
Fixed --enable-libwrap option of ./configure script.
/opt/local added to OpenSSL search path for MacPorts compatibility.
Workaround implemented for signal handling on MacOS X.
A trivial bug fixed in the stunnel.init script.
Retry implemented on EAI_AGAIN error returned by resolver calls.
Version 4.35, 2011.02.05, urgency: LOW:
New features
Updated Win32 DLLs for OpenSSL 1.0.0c.
Transparent source (non-local bind) added for FreeBSD 8.x.
Transparent destination ("transparent = destination") added for Linux.
Bugfixes
Fixed reload of FIPS-enabled stunnel.
Compiler options are now auto-detected by ./configure script in order to support obsolete versions of gcc.
Async-signal-unsafe s_log() removed from SIGTERM/SIGQUIT/SIGINT handler.
CLOEXEC file descriptor leaks fixed on Linux >= 2.6.28 with glibc >= 2.10. Irreparable race condition leaks remain on other Unix platforms. This issue may have security implications on some deployments: http://udrepper.livejournal.com/20407.html
Directory lib64 included in the OpenSSL library search path.
Windows CE compilation fixes (thx to Pierre Delaage).
Deprecated RSA_generate_key() replaced with RSA_generate_key_ex().
Domain name changes (courtesy of Bri Hatch)
http://stunnel.mirt.net/ --> http://www.stunnel.org/
ftp://stunnel.mirt.net/ --> http://ftp.stunnel.org/
stunnel.mirt.net::stunnel --> rsync.stunnel.org::stunnel
stunnel-users@mirt.net --> stunnel-users@stunnel.orgstunnel-announce@mirt.net --> stunnel-announce@stunnel.org
Version 4.34, 2010.09.19, urgency: LOW:
New features
Updated Win32 DLLs for OpenSSL 1.0.0a.
Updated Win32 DLLs for zlib 1.2.5.
Updated automake to version 1.11.1
Updated libtool to version 2.2.6b
Added ECC support with a new service-level "curve" option.
DH support is now enabled by default.
Added support for OpenSSL builds with some algorithms disabled.
./configure modified to support cross-compilation.
Sample stunnel.init updated based on Debian init script.
Bugfixes
Implemented fixes in user interface to enter engine PIN.
Fixed a transfer() loop issue on socket errors.
Fixed missing WIN32 taskbar icon while displaying a global option error.
- New features
- New service-level "libwrap" option for run-time control whether
/etc/hosts.allow and /etc/hosts.deny are used for access control.
Disabling libwrap significantly increases performance of stunnel.
- Log file reopen on USR1 signal was added.
- Graceful configuration reload with HUP signal on Unix
and with GUI on Windows.
- Bugfixes
- Inetd mode fixed
- Fixed a transfer() loop issue with SSLv2 connections.
- Fixed a "setsockopt IP_TRANSPARENT" warning with "local" option.
- Logging subsystem bugfixes and cleanup.
- Installer bugfixes for Vista and later versions of Windows.
- FIPS mode can be enabled/disabled at runtime.
Version 4.29, 2009.12.02, urgency: MEDIUM:
* New features sponsored by Searchtech Limited http://www.astraweb.com/
- sessiond, a high performance SSL session cache was built for stunnel.
A new service-level "sessiond" option was added. sessiond is
available for download on ftp://stunnel.mirt.net/stunnel/sessiond/ .
stunnel clusters will be a lot faster, now!
* Bugfixes
- "execargs" defaults to the "exec" parameter (thx to Peter Pentchev).
- Compilation fixes added for AIX and old versions of OpenSSL.
- Missing "fips" option was added to the manual.
Version 4.28, 2009.11.08, urgency: MEDIUM:
* New features
- Win32 DLLs for OpenSSL 0.9.8l.
- Transparent proxy support on Linux kernels >=2.6.28.
See the manual for details.
- New socket options to control TCP keepalive on Linux:
TCP_KEEPCNT, TCP_KEEPIDLE, TCP_KEEPINTVL.
- SSL options updated for the recent version of OpenSSL library.
* Bugfixes
- A serious bug in asynchronous shutdown code fixed.
- Data alignment updated in libwrap.c.
- Polish manual encoding fixed.
- Notes on compression implementation in OpenSSL added to the manual.
- fix the configuration path and file, so it can use the proper user:group
and the chroot
- fix some pkglint warnings regarding PKG_OPTIONS: 'pthread' => 'threads',
'libwrap' => 'tcpwrappers' (in accordance to mk/defaults/options.description)
Bump PKGREVISION.
- New features
- FIPS support was updated for openssl-fips 1.2.
- New priority failover strategy for multiple "connect" targets,
controlled with "failover=rr" (default) or "failover=prio".
- pgsql protocol negotiation by Marko Kreen <markokr@gmail.com>.
- Bugfixes
- Libwrap helper processes fixed to close standard
input/output/error file descriptors.
* libwrap related fixes, better debugging messages, MS Visual C++ support
Changes 4.25:
* delay libwrap process spawning after dropping privs, other improvements
