Version history for OpenVPN

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Changes for v2.4.6 - v2.4.7

• Adam Ciarciński (1):
• Fix subnet topology on NetBSD (2.4).
• Antonio Quartulli (3):
• add support for %lu in argv_printf and prevent ASSERT
• buffer_list: add functions documentation
• ifconfig-ipv6(-push): allow using hostnames
• Arne Schwabe (7):
• Properly free tuntap struct on android when emulating persist-tun
• Add OpenSSL compat definition for RSA_meth_set_sign
• Add support for tls-ciphersuites for TLS 1.3
• Add better support for showing TLS 1.3 ciphersuites in --show-tls
• Use right function to set TLS1.3 restrictions in show-tls
• Add message explaining early TLS client hello failure
• Fallback to password authentication when auth-token fails
• Christian Ehrhardt (1):
• systemd: extend CapabilityBoundingSet for auth_pam
• David Sommerseth (1):
• plugin: Export base64 encode and decode functions
• Gert Doering (4):
• Add %d, %u and %lu tests to test_argv unit tests.
• Fix combination of --dev tap and --topology subnet across multiple platforms.
• Add 'printing of port number' to mroute_addr_print_ex() for v4-mapped v6.
• preparing release v2.4.7 (ChangeLog, version.m4, Changes.rst)
• Gert van Dijk (1):
• Minor reliability layer documentation fixes
• James Bekkema (1):
• Resolves small IV_GUI_VER typo in the documentation.
• Jonathan K. Bullard (1):
• Clarify and expand management interface documentation
• Lev Stipakov (5):
• Refactor NCP-negotiable options handling
• init.c: refine functions names and description
• interactive.c: fix usage of potentially uninitialized variable
• options.c: fix broken unary minus usage
• Remove extra token after #endif
• Richard van den Berg via Openvpn-devel (1):
• Fix error message when using RHEL init script
• Samy Mahmoudi (1):
• man: correct a --redirection-gateway option flag
• Selva Nair (7):
• Replace M_DEBUG with D_LOW as the former is too verbose
• Correct the declaration of handle in 'struct openvpn_plugin_args_open_return'
• Bump version of openvpn plugin argument structs to 5
• Move get system directory to a separate function
• Enable dhcp on tap adapter using interactive service
• Pass the hash without the DigestInfo header to NCryptSignHash()
• White-list pull-filter and script-security in interactive service
• Simon Rozman (2):
• Add Interactive Service developer documentation
• Detect TAP interfaces with root-enumerated hardware ID
• Steffan Karger (7):
• man: add security considerations to --compress section
• mbedtls: print warning if random personalisation fails
• Fix memory leak after sighup
• travis: add OpenSSL 1.1 Windows build
• Fix --disable-crypto build
• Don't print OCC warnings about 'key-method', 'keydir' and 'tls-auth'
• buffer_list_aggregate_separator(): simplify code

Changes for v2.4.3 - v2.4.4

• Antonio Quartulli (23):
• crypto: correct typ0 in error message
• use M_ERRNO instead of explicitly printing errno
• don't print errno twice
• ntlm: avoid useless cast
• ntlm: unwrap multiple function calls
• route: improve error message
• management: preserve wait_for_push field when asking for user/pass
• tls-crypt: avoid warnings when --disable-crypto is used
• ntlm: convert binary buffers to uint8_t *
• ntlm: restyle compressed multiple function calls
• ntlm: improve code style and readability
• OpenSSL: remove unreachable call to SSL_CTX_get0_privatekey()
• make function declarations C99 compliant
• remove unused functions
• use NULL instead of 0 when assigning pointers
• add missing static attribute to functions
• ntlm: avoid breaking anti-aliasing rules
• remove the --disable-multi config switch
• rename mroute_extract_addr_ipv4 to mroute_extract_addr_ip
• route: avoid definition of unused variables in certain configurations
• fix a couple of typ0s in comments and strings
• fragment.c: simplify boolean expression
• tcp-server: ensure AF family is propagated to child context
• Arne Schwabe (2):
• Set tls-cipher restriction before loading certificates
• Print ec bit details, refuse management-external-key if key is not RSA
• Conrad Hoffmann (2):
• Use provided env vars in up/down script.
• Document down-root plugin usage in client.down
• David Sommerseth (12):
• doc: The CRL processing is not a deprecated feature
• cleanup: Move write_pid() to where it is being used
• contrib: Remove keychain-mcd code
• cleanup: Move init_random_seed() to where it is being used
• sample-plugins: fix ASN1_STRING_to_UTF8 return value checks
• Highlight deprecated features
• Use consistent version references
• docs: Replace all PolarSSL references to mbed TLS
• systemd: Ensure systemd shuts down OpenVPN in a proper way
• systemd: Enable systemd's auto-restart feature for server profiles
• lz4: Move towards a newer LZ4 API
• Prepare the release of OpenVPN 2.4.4
• Emmanuel Deloget (3):
• OpenSSL: remove pre-1.1 function from the OpenSSL compat interface
• OpenSSL: remove EVP_CIPHER_CTX_new() from the compat layer
• OpenSSL: remove EVP_CIPHER_CTX_free() from the compat layer
• Gert van Dijk (1):
• Warn that DH config option is only meaningful in a tls-server context
• Ilya Shipitsin (3):
• travis-ci: add 3 missing patches from master to release/2.4
• travis-ci: update openssl to 1.0.2l, update mbedtls to 2.5.1
• travis-ci: update pkcs11-helper to 1.22
• Richard Bonhomme (1):
• man: Corrections to doc/openvpn.8
• Steffan Karger (17):
• Fix typo in extract_x509_extension() debug message
• Move adjust_power_of_2() to integer.h
• Undo cipher push in client options state if cipher is rejected
• Remove strerror_ts()
• Move openvpn_sleep() to manage.c
• fixup: also change missed openvpn_sleep() occurrences
• Always use default keysize for NCP'd ciphers
• Move create_temp_file() out of #ifdef ENABLE_CRYPTO
• Deprecate --keysize
• Deprecate --no-replay
• Move run_up_down() to init.c
• tls-crypt: introduce tls_crypt_kt()
• crypto: create function to initialize encrypt and decrypt key
• Add coverity static analysis to Travis CI config
• tls-crypt: don't leak memory for incorrect tls-crypt messages
• travis: reorder matrix to speed up build
• Fix bounds check in read_key()
• Szilárd Pfeiffer (1):
• OpenSSL: Always set SSL_OP_CIPHER_SERVER_PREFERENCE flag
• Thomas Veerman via Openvpn-devel (1):
• Fix socks_proxy_port pointing to invalid data

Changes for v2.4.2 - v2.4.3

• Antonio Quartulli (1):
• Ignore auth-nocache for auth-user-pass if auth-token is pushed
• David Sommerseth (3):
• crypto: Enable SHA256 fingerprint checking in --verify-hash
• copyright: Update GPLv2 license texts
• auth-token with auth-nocache fix broke --disable-crypto builds
• Emmanuel Deloget (8):
• OpenSSL: don't use direct access to the internal of X509
• OpenSSL: don't use direct access to the internal of EVP_PKEY
• OpenSSL: don't use direct access to the internal of RSA
• OpenSSL: don't use direct access to the internal of DSA
• OpenSSL: force meth->name as non-const when we free() it
• OpenSSL: don't use direct access to the internal of EVP_MD_CTX
• OpenSSL: don't use direct access to the internal of EVP_CIPHER_CTX
• OpenSSL: don't use direct access to the internal of HMAC_CTX
• Gert Doering (6):
• Fix NCP behaviour on TLS reconnect.
• Remove erroneous limitation on max number of args for --plugin
• Fix edge case with clients failing to set up cipher on empty PUSH_REPLY.
• Fix potential 1-byte overread in TCP option parsing.
• Fix remotely-triggerable ASSERT() on malformed IPv6 packet.
• Preparing for release v2.4.3 (ChangeLog, version.m4, Changes.rst)
• Guido Vranken (6):
• refactor my_strupr
• Fix 2 memory leaks in proxy authentication routine
• Fix memory leak in add_option() for option 'connection'
• Ensure option array p[] is always NULL-terminated
• Fix a null-pointer dereference in establish_http_proxy_passthru()
• Prevent two kinds of stack buffer OOB reads and a crash for invalid input data
• Jérémie Courrèges-Anglas (2):
• Fix an unaligned access on OpenBSD/sparc64
• Missing include for socket-flags TCP_NODELAY on OpenBSD
• Matthias Andree (1):
• Make openvpn-plugin.h self-contained again.
• Selva Nair (1):
• Pass correct buffer size to GetModuleFileNameW()
• Steffan Karger (11):
• Log the negotiated (NCP) cipher
• Avoid a 1 byte overcopy in x509_get_subject (ssl_verify_openssl.c)
• Skip tls-crypt unit tests if required crypto mode not supported
• openssl: fix overflow check for long --tls-cipher option
• Add a DSA test key/cert pair to sample-keys
• Fix mbedtls fingerprint calculation
• mbedtls: fix --x509-track post-authentication remote DoS (CVE-2017-7522)
• mbedtls: require C-string compatible types for --x509-username-field
• Fix remote-triggerable memory leaks (CVE-2017-7521)
• Restrict --x509-alt-username extension types
• Fix potential double-free in --x509-alt-username (CVE-2017-7521)
• Steven McDonald (1):
• Fix gateway detection with OpenBSD routing domains

Changes for v2.3.12 - v2.3.13

• Arne Schwabe (2):
• Use AES ciphers in our sample configuration files and add a few modern 2.4 examples
• Incorporate the Debian typo fixes where appropriate and make show_opt default message clearer
• David Sommerseth (5):
• t_client.sh: Make OpenVPN write PID file to avoid various sudo issues
• t_client.sh: Add support for Kerberos/ksu
• t_client.sh: Improve detection if the OpenVPN process did start during tests
• t_client.sh: Add prepare/cleanup possibilties for each test case
• Preparing release of v2.3.13
• Gert Doering (5):
• Do not abort t_client run if OpenVPN instance does not start.
• Fix t_client runs on OpenSolaris
• make t_client robust against sudoers misconfiguration
• add POSTINIT_CMD_suf to t_client.sh and sample config
• Fix --multihome for IPv6 on 64bit BSD systems.
• Ilya Shipitsin (1):
• skip t_lpback.sh and t_cltsrv.sh if openvpn configured --disable-crypto
• Lev Stipakov (2):
• Exclude peer-id from pulled options digest
• Fix compilation in pedantic mode
• Samuli Seppänen (1):
• Automatically cache expected IPs for t_client.sh on the first run
• Steffan Karger (6):
• Fix unittests for out-of-source builds
• Make gnu89 support explicit
• cleanup: remove code duplication in msg_test()
• Update cipher-related man page text
• Limit --reneg-bytes to 64MB when using small block ciphers
• Add a revoked cert to the sample keys

Changes for v2.3.10 - v2.3.12

• This release includes many small improvements and fixes. This is the first release that actively discourages the use of 64-bit block ciphers for security reasons.

Changes for v2.3.9 - v2.3.10

• Gert Doering (2):
• Prepare for v2.3.10 release, list PolarSSL 1.2 to 1.3 upgrade
• Preparing for release v2.3.10 (ChangeLog, version.m4)
• Jan Just Keijser (1):
• Make certificate expiry warning patch (091edd8e299686) work on OpenSSL 1.0.1 and earlier.
• Lev Stipakov (1):
• Repair IPv6 netsh calls if Win XP is detected
• Phillip Smith (1):
• Use bob.example.com and alice.example.com to improve clarity of documentation
• Steffan Karger (6):
• Remove unused variables from ssl_verify_polarssl.c's x509_get_serial()
• Upgrade OpenVPN 2.3 to PolarSSL 1.3
• Warn user if their certificate has expired
• Make assert_failed() print the failed condition
• cleanup: get rid of httpdigest.c type warnings
• Fix regression in setups without a client certificate
• Yegor Yefremov (1):
• polarssl: fix unreachable code

Changes for v2.3.7 - v2.3.8

• Arne Schwabe (2):
• Report missing endtags of inline files as warnings
• Fix commit e473b7c if an inline file happens to have a line break exactly at buffer limit
• Gert Doering (3):
• Produce a meaningful error message if --daemon gets in the way of asking for passwords.
• Document --daemon changes and consequences (--askpass, --auth-nocache).
• Preparing for release v2.3.8 (ChangeLog, version.m4)
• Holger Kummert (1):
• Del ipv6 addr on close of linux tun interface
• James Geboski (1):
• Fix --askpass not allowing for password input via stdin
• Steffan Karger (5):
• write pid file immediately after daemonizing
• Make __func__ work with Visual Studio too
• fix regression: query password before becoming daemon
• Fix using management interface to get passwords.
• Fix overflow check in openvpn_decrypt()

Changes for v2.3.5 - v2.3.6

• systemd: Reworked the systemd unit file to handle server and client configs better
• Add client-only support for peer-id.
• Preparing for release v2.3.6 (ChangeLog, version.m4)
• Fix to --shaper documentation on the man-page
• Fix assertion error when using --cipher none
• Add --tls-version-max
• Modernize sample keys and sample configs
• Drop too-short control channel packets instead of asserting out.

Changes for v2.3.4 - v2.3.5

• Fix some typos in the man page.
• Do not upcase x509-username-field for mixed-case arguments.
• Fix server routes not working in topology subnet with --server [v3]
• Improve error reporting on file access to --client-config-dir and --ccd-exclusive
• Don't let openvpn_popen() keep zombies around
• Add systemd unit file for OpenVPN
• systemd: Use systemd functions to consider systemd availability
• Drop incoming fe80:: packets silently now.
• Fix t_lpback.sh platform-dependent failures
• Call init script helpers with explicit path (./)
• Preparing for release v2.3.5 (ChangeLog, version.m4)
• refine assertion to allow other modes than CBC
• ocsp_check - signature verification and cert staus results are separate
• ocsp_check - double check if ocsp didn't report any errors in execution
• Fix socket-flag/TCP_NODELAY on Mac OS X
• Fixed several instances of declarations after statements.
• In socket.c, fixed issue where uninitialized value (err) is being passed to to gai_strerror.
• Explicitly cast the third parameter of setsockopt to const void * to avoid warning.
• MSVC 2008 doesn't support dimensioning an array with a const var nor using %z as a printf format specifier.
• Define PATH_SEPARATOR for MSVC builds.
• Fixed some compile issues with show_library_versions()
• Remove quadratic complexity from openvpn_base64_decode()
• Add configure check for the path to systemd-ask-password
• Add topology in sample server configuration file
• Implement on-link route adding for iproute2
• Ensure that client-connect files are always deleted
• Remove function without effect (cipher_ok() always returned true).
• Remove unneeded wrapper functions in crypto_openssl.c
• Fix bug that incorrectly refuses oid representation eku's in polar builds
• Update README.polarssl
• Rename ALLOW_NON_CBC_CIPHERS to ENABLE_OFB_CFB_MODE, and add to configure.
• Improve --show-ciphers to show if a cipher can be used in static key mode
• Extend t_lpback tests to test all ciphers reported by --show-ciphers
• Don't exit daemon if opening or parsing the CRL fails.
• Fix typo in cipher_kt_mode_{cbc, ofb_cfb}() doxygen.
• Fix regression with password protected private keys (polarssl)
• ssl_polarssl.c: fix includes and make casts explicit
• Remove unused variables from ssl_verify_openssl.c extract_x509_extension()
• Fix "code=995" bug with windows NDIS6 tap driver.

Changes for v2.3.3 - v2.3.4

• Fix man page and OSCP script: tls_serial_{n} is decimal
• Fix is_ipv6 in case of tap interface.
• IPv6 address/route delete fix for Win8
• Add SSL library version reporting.
• Minor t_client.sh cleanups
• Repair --multihome on FreeBSD for IPv4 sockets.
• Rewrite manpage section about --multihome
• More IPv6-related updates to the openvpn man page.
• Conditionalize calls to print_default_gateway on !ENABLE_SMALL
• Preparing for release v2.3.4 (ChangeLog, version.m4)
• Use native strtoull() with MSVC 2013.
• When tls-version-min is unspecified, revert to original versioning approach.
• Change signedness of hash in x509_get_sha1_hash(), fixes compiler warning.
• Fix OCSP_check.sh to also use decimal for stdout verification.
• Fix build system to accept non-system crypto library locations for plugins.
• Make serial env exporting consistent amongst OpenSSL and PolarSSL builds.
• Fix SOCKSv5 method selection
• Fix typo in sample build script to use LDFLAGS

Changes for v2.3.2-I003 - v2.3.3

• Alon Bar-Lev (1):
• pkcs11: use generic evp key instead of rsa
• Arne Schwabe (8):
• Add support of utun devices under Mac OS X
• Add support to ignore specific options.
• Add a note what setenv opt does for OpenVPN < 2.3.3
• Add reporting of UI version to basic push-peer-info set.
• Fix compile error in ssl_openssl introduced by polar external-management patch
• Fix assertion when SIGUSR1 is received while getaddrinfo is successful
• Add warning for using connection block variables after connection blocks
• Introduce safety check for http proxy options
• David Sommerseth (5):
• man page: Update man page about the tls_digest_{n} environment variable
• Remove the --disable-eurephia configure option
• plugin: Extend the plug-in v3 API to identify the SSL implementation used
• autoconf: Fix typo
• Fix file checks when --chroot is being used
• Davide Brini (1):
• Document authfile for socks server
• Gert Doering (9):
• Fix IPv6 examples in t_client.rc-sample
• Fix slow memory drain on each client renegotiation.
• t_client.sh: ignore fields from "ip -6 route show" output that distort results.
• Make code and documentation for --remote-random-hostname consistent.
• Reduce IV_OPENVPN_GUI_VERSION= to IV_GUI_VER=
• Document issue with --chroot, /dev/urandom and PolarSSL.
• Rename 'struct route' to 'struct route_ipv4'
• Replace copied structure elements with including
• Workaround missing SSL_OP_NO_TICKET in earlier OpenSSL versions
• Heikki Hannikainen (1):
• Always load intermediate certificates from a PKCS#12 file
• Heiko Hund (2):
• Support non-ASCII TAP adapter names on Windows
• Support non-ASCII characters in Windows tmp path
• James Yonan (3):
• TLS version negotiation
• Added "setenv opt" directive prefix.
• Set SSL_OP_NO_TICKET flag in SSL context for OpenSSL builds, to disable TLS stateless session resumption.
• Jens Wagner (1):
• Fix spurious ignoring of pushed config options (trac#349).
• Joachim Schipper (3):
• Refactor tls_ctx_use_external_private_key()
• --management-external-key for PolarSSL
• external_pkcs1_sign: Support non-RSA_SIG_RAW hash_ids
• Josh Cepek (2):
• Correct error text when no Windows TAP device is present
• Require a 1.2.x PolarSSL version
• Klee Dienes (1):
• tls_ctx_load_ca: Improve certificate error messages
• Max Muster (1):
• Remove duplicate cipher entries from TLS translation table.
• Peter Sagerson (1):
• Fix configure interaction with static OpenSSL libraries
• Steffan Karger (7):
• Do not pass struct tls_session* as void* in key_state_ssl_init().
• Require polarssl >= 1.2.10 for polarssl-builds, which fixes CVE-2013-5915.
• Use RSA_generate_key_ex() instead of deprecated, RSA_generate_key()
• Also update TLSv1_method() calls in support code to SSLv23_method() calls.
• Update TLSv1 error messages to SSLv23 to reflect changes from commit 4b67f98
• If --tls-cipher is supplied, make --show-tls parse the list.
• Add openssl-specific common cipher list names to ssl.c.
• Tamas TEVESZ (1):
• Add support for client-cert-not-required for PolarSSL.
• Thomas Veerman (1):
• Fix "." in description of utun.

Changes for v2.3.2 - v2.3.2-I003

• The I003 Windows installer fixes a signature problem in tap-windows driver, which prevented the driver from being installed in many cases

Changes for v2.3.1 - v2.3.2

• Only print script warnings when a script is used. Remove stray mention of script-security system.
• Move settings of user script into set_user_script function
• Move checking of script file access into set_user_script
• Provide more accurate warning message
• Fix NULL-pointer crash in route_list_add_vpn_gateway().
• Fix problem with UDP tunneling due to mishandled pktinfo structures.
• Always push basic set of peer info values to server.
• make 'explicit-exit-notify' pullable again
• Fix proto tcp6 for server & non-P2MP modes
• Fix Windows script execution when called from script hooks
• Fixed tls-cipher translation bug in openssl-build
• Fixed usage of stale define USE_SSL to ENABLE_SSL
• Fix segfault when enabling pf plug-ins

Changes for v2.3.0 - v2.3.1

• Arne Schwabe (4):
• Remove dead code path and putenv functionality
• Remove unused function xor
• Move static prototype definition from header into c file
• Remove unused function no_tap_ifconfig
• Christian Hesse (1):
• fix build with automake 1.13(.1)
• Christian Niessner (1):
• Fix corner case in NTLM authentication (trac #172)
• Gert Doering (6):
• Update README.IPv6 to match what is in 2.3.0
• Repair "tcp server queue overflow" brokenness, more fallout.
• Permit pool size of /64.../112 for ifconfig-ipv6-pool
• Add MIN() compatibility macro
• Fix directly connected routes for "topology subnet" on Solaris.
• Preparing for v2.3.1 (ChangeLog, version.m4)
• Heiko Hund (5):
• close more file descriptors on exec
• Ignore UTF-8 byte order mark
• reintroduce --no-name-remapping option
• make --tls-remote compatible with pre 2.3 configs
• add new option for X.509 name verification
• Jan Just Keijser (1):
• man page patch for missing options
• Josh Cepek (2):
• Fix parameter listing in non-debug builds at verb 4
• (updated) [PATCH] Warn when using verb levels >=7 without debug
• Matthias Andree (1):
• Enable TCP_NODELAY configuration on FreeBSD.
• Samuli Seppänen (4):
• Removed ChangeLog.IPv6
• Added cross-compilation information INSTALL-win32.txt
• Updated README
• Cleaned up and updated INSTALL
• Steffan Karger (7):
• PolarSSL-1.2 support
• Improve PolarSSL key_state_read_{cipher, plain}text messages
• Improve verify_callback messages
• Config compatibility patch. Added translate_cipher_name.
• Switch to IANA names for TLS ciphers.
• Fixed autoconf script to properly detect missing pkcs11 with polarssl.
• Use constant time memcmp when comparing HMACs in openvpn_decrypt.

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