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stunnel 5.00 released
by Michal Trojnara 06 Mar '14

06 Mar '14

Dear Users, I have released version 5.00 of stunnel. The ChangeLog entry: stunnel 5.00 disables some features previously enabled by default. Users should review whether the new defaults are appropriate for their particular deployments. Packages maintainers may consider prepending the old defaults for "fips" (if supported by their OpenSSL library), "pid" and "libwrap" to stunnel.conf during automated updates. Version 5.00, 2014.03.06, urgency: HIGH: * 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. Home page: https://www.stunnel.org/ Download: https://www.stunnel.org/downloads.html SHA-256 hash for stunnel-5.00.tar.gz: 88986d52a7ef1aff0cc26fc0a9830361c991baba7ee591d5cf1cc8baef75bc13 Best regards, Mike

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stunnel 4.56 released
by Michal Trojnara 22 Mar '13

22 Mar '13

Dear Users, I have released version 4.56 of stunnel. The ChangeLog entry: Version 4.56, 2013.03.22, urgency: HIGH: * New features - Win32 installer automatically configures firewall exceptions. - Win32 installer configures administrative shortcuts to invoke UAC. - Improved Win32 GUI shutdown time. * Bugfixes - Fixed a regression bug introduced in version 4.55 causing random crashes on several platforms, including Windows 7. - Fixed startup crashes on some Win32 systems. - 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. Home page: https://www.stunnel.org/ Download: https://www.stunnel.org/downloads.html SHA-256 hash for stunnel-4.56.tar.gz: 9cae2cfbe26d87443398ce50d7d5db54e5ea363889d5d2ec8d2778a01c871293 Best regards, Mike

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stunnel 4.55 released (security update)
by Michal Trojnara 03 Mar '13

03 Mar '13

Dear Users, I have released version 4.55 of stunnel. This is a massive bugfix release, including a security bugfix. Update is highly recommended. The ChangeLog entry: 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. Home page: https://www.stunnel.org/ Download: https://www.stunnel.org/downloads.html SHA-256 hash for stunnel-4.55.tar.gz: 5a4acecfabd454415c727435acdfca7dc46aa542998fb278293f494a6d36d37a Best regards, Mike

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stunnel 4.54 released
by Michal Trojnara 09 Oct '12

09 Oct '12

Dear Users, I have released version 4.54 of stunnel. The ChangeLog entry: Version 4.54, 2012.10.09, urgency: MEDIUM: * 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.. Home page: https://www.stunnel.org/ <http://stunnel.mirt.net/> Download: https://www.stunnel.org/downloads.html <ftp://stunnel.mirt.net/stunnel/> SHA-256 hash for stunnel-4.54.tar.gz: b7e1b9e63569574dbdabee8af90b8ab88db3fe13dcb1268d59a1408c56e6de7b Best regards, Mike

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stunnel 4.53 released
by Michal Trojnara 19 Mar '12

19 Mar '12

Dear Users, I have released version 4.53 of stunnel. This is major a bugfix release. Upgrade is highly recommended. The ChangeLog entry: 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. Home page: http://www.stunnel.org/ Download: ftp://ftp.stunnel.org/stunnel/ SHA-256 hash for stunnel-4.53.tar.gz: 3e640aa4c96861d10addba758b66e99e7c5aec8697764f2a59ca2268901b8e57 Best regards, Mike

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stunnel 4.52 released
by Michal Trojnara 12 Jan '12

12 Jan '12

Dear Users, I have released version 4.52 of stunnel. This is a bugfix release. Upgrade is highly recommended. The ChangeLog entry: 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. Home page: http://www.stunnel.org/ Download: ftp://ftp.stunnel.org/stunnel/ SHA-256 hash for stunnel-4.52.tar.gz: 7c78c178074e9b96331518a9c309d2e95ca9ad6e0338a96d5ab8ad47fde4347c Best regards, Mike

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stunnel 4.51 released
by Michal Trojnara 09 Jan '12

09 Jan '12

Dear Users, I have released version 4.51 of stunnel. The ChangeLog entry: 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 Home page: http://www.stunnel.org/ Download: ftp://ftp.stunnel.org/stunnel/ SHA-256 hash for stunnel-4.51.tar.gz: dc52b22de48a2d71ab6170adb628dbe05dd406d6c9103fc43fbdbda776c3e90b Best regards, Mike

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stunnel 4.50 released
by Michal Trojnara 03 Dec '11

03 Dec '11

Dear Users, I have released version 4.50 of stunnel. The ChangeLog entry: 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). Home page: http://www.stunnel.org/ Download: ftp://ftp.stunnel.org/stunnel/ SHA-256 hash for stunnel-4.50.tar.gz: 933467009529bae4f338bb20e758e0ea20b0759130e7695ea2193c4f270e5eaf Best regards, Mike

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stunnel 4.49 released
by Michal Trojnara 28 Nov '11

28 Nov '11

Dear Users, I have released version 4.49 of stunnel. The ChangeLog entry: 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. Home page: http://www.stunnel.org/ Download: ftp://ftp.stunnel.org/stunnel/ SHA-256 hash for stunnel-4.49.tar.gz: dcb0e1f21e9fcf56f4d67bc7a5a4ef8720845b61063a749953417db2616cb20d Best regards, Mike

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stunnel 4.48 released
by Michal Trojnara 26 Nov '11

26 Nov '11

Dear Users, I have released version 4.48 of stunnel. The ChangeLog entry: 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. Home page: http://www.stunnel.org/ Download: ftp://ftp.stunnel.org/stunnel/ SHA-256 hash for stunnel-4.48.tar.gz: 9fa723595726806cbf6547a2c453e695e33bf635f2d4771e80d110a06f27ea37 Best regards, Mike

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