- New upstream release 1.10.0
- Adds agent forwarding support
- Adds OpenSSH Agent support on Windows
- Adds ECDSA key support using the Mbed TLS backend
- Adds ECDSA cert authentication
- Adds diffie-hellman-group14-sha256, diffie-hellman-group16-sha512,
diffie-hellman-group18-sha512 key exchanges
- Adds support for PKIX key reading when using ed25519 with OpenSSL
- Adds support for EWOULDBLOCK on VMS systems
- Adds support for building with OpenSSL 3
- Adds support for using FIPS mode in OpenSSL
- Adds debug symbols when building with MSVC
- Adds support for building on the 3DS
- Adds unicode build support on Windows
- Restores os400 building
- Increases min, max and opt Diffie Hellman group values
- Improves portability of the make file
- Improves timeout behaviour with 2FA keyboard auth
- Various improvements to the Wincng backend
- Fixes reading partial packet replies when using an agent
- Fixes Diffie Hellman key exchange on Windows 1903+ builds
- Fixes building tests with older versions of OpenSSL
- Fixes possible multiple definition warnings
- Fixes potential cast issues _libssh2_ecdsa_key_get_curve_type()
- Fixes potential use after free if libssh2_init() is called twice
- Improved linking when using Mbed TLS
- Fixes call to libssh2_crypto_exit() if crypto hasn't been initialized
- Fixes crash when loading public keys with no id
- Fixes possible out of bounds read when exchanging keys
- Fixes possible out of bounds read when reading packets
- Fixes possible out of bounds read when opening an X11 connection
- Fixes possible out of bounds read when ecdh host keys
- Fixes possible hang when trying to read a disconnected socket
- Fixes a crash when using the delayed compression option
- Fixes read error with large known host entries
- Fixes various warnings
- Fixes various small memory leaks
- Improved error handling, various detailed errors will now be reported
- Builds are now using OSS-Fuzz
- Builds now use autoreconf instead of a custom build script
- cmake now respects install directory
- Improved CI backend
- Updated HACKING-CRYPTO documentation
- Use markdown file extensions
- Improved unit tests
- New upstream release 1.9.0
- Adds ECDSA keys and host key support when using OpenSSL
- Adds ED25519 key and host key support when using OpenSSL 1.1.1
- Adds OpenSSH style key file reading
- Adds AES CTR mode support when using WinCNG
- Adds PEM passphrase protected file support for libgcrypt and WinCNG
- Adds SHA256 hostkey fingerprint
- Adds libssh2_agent_get_identity_path() and libssh2_agent_set_identity_path()
- Adds explicit zeroing of sensitive data in memory
- Adds additional bounds checks to network buffer reads
- Adds the ability to use the server default permissions when creating sftp directories
- Adds support for building with OpenSSL no engine flag
- Adds support for building with LibreSSL
- Increased sftp packet size to 256k
- Fixed oversized packet handling in sftp
- Fixed building with OpenSSL 1.1
- Fixed a possible crash if sftp stat gets an unexpected response
- Fixed incorrect parsing of the KEX preference string value
- Fixed conditional RSA and AES-CTR support
- Fixed a small memory leak during the key exchange process
- Fixed a possible memory leak of the ssh banner string
- Fixed various small memory leaks in the backends
- Fixed possible out of bounds read when parsing public keys from the server
- Fixed possible out of bounds read when parsing invalid PEM files
- No longer null terminates the scp remote exec command
- Now handle errors when Diffie Hellman key pair generation fails
- Fixed compiling on Windows with the flag STDCALL=ON
- Improved building instructions
- Improved unit tests
- Needs OpenSSL ≥ 1.0.1 now as ECC support is assumed
- Modernize spec somewhat as EL-6 can no longer be supported
- New upstream release 1.8.1
- Fixed possible integer overflow when reading a specially crafted packet
(CVE-2019-3855)
- Fixed possible integer overflow in userauth_keyboard_interactive with a
number of extremely long prompt strings (CVE-2019-3863)
- Fixed possible integer overflow if the server sent an extremely large
number of keyboard prompts (CVE-2019-3856)
- Fixed possible out of bounds read when processing a specially crafted
packet (CVE-2019-3861)
- Fixed possible integer overflow when receiving a specially crafted exit
signal message channel packet (CVE-2019-3857)
- Fixed possible out of bounds read when receiving a specially crafted exit
status message channel packet (CVE-2019-3862)
- Fixed possible zero byte allocation when reading a specially crafted SFTP
packet (CVE-2019-3858)
- Fixed possible out of bounds reads when processing specially crafted SFTP
packets (CVE-2019-3860)
- Fixed possible out of bounds reads in _libssh2_packet_require(v)
(CVE-2019-3859)
- Fix mis-applied patch in the fix of CVE-2019-3859
- https://github.com/libssh2/libssh2/issues/325
- https://github.com/libssh2/libssh2/pull/327
- New upstream release 1.7.0
- diffie_hellman_sha256: Convert bytes to bits (CVE-2016-0787); see
http://www.libssh2.org/adv_20160223.html
- libssh2_session_set_last_error: Add function
- See RELEASE-NOTES for details of bug fixes
- New upstream release 1.5.0
- See RELEASE-NOTES for details of bug fixes and enhancements
- Security Advisory for CVE-2015-1782, using SSH_MSG_KEXINIT data unbounded
- New upstream release 1.4.3
- compression: add support for zlib@openssh.com
- sftp_read: return error if a too large package arrives
- libssh2_hostkey_hash.3: update the description of return value
- Fixed MSVC NMakefile
- examples: use stderr for messages, stdout for data
- openssl: do not leak memory when handling errors
- improved handling of disabled MD5 algorithm in OpenSSL
- known_hosts: Fail when parsing unknown keys in known_hosts file
- configure: gcrypt doesn't come with pkg-config support
- session_free: wrong variable used for keeping state
- libssh2_userauth_publickey_fromfile_ex.3: mention publickey == NULL
- comp_method_zlib_decomp: handle Z_BUF_ERROR when inflating
- Drop upstreamed patches
- New upstream release 1.4.2
- Return LIBSSH2_ERROR_SOCKET_DISCONNECT on EOF when reading banner
- userauth.c: fread() from public key file to correctly detect any errors
- configure.ac: add option to disable build of the example applications
- added 'Requires.private:' line to libssh2.pc
- SFTP: filter off incoming "zombie" responses
- gettimeofday: no need for a replacement under cygwin
- SSH_MSG_CHANNEL_REQUEST: default to want_reply
- win32/libssh2_config.h: remove hardcoded #define LIBSSH2_HAVE_ZLIB
- New upstream release 1.4.1
- Build error with gcrypt backend
- Always do "forced" window updates to avoid corner case stalls
- aes: the init function fails when OpenSSL has AES support
- transport_send: finish in-progress key exchange before sending data
- channel_write: acknowledge transport errors
- examples/x11.c: make sure sizeof passed to read operation is correct
- examples/x11.c: fix suspicious sizeof usage
- sftp_packet_add: verify the packet before accepting it
- SFTP: preserve the original error code more
- sftp_packet_read: adjust window size as necessary
- Use safer snprintf rather then sprintf in several places
- Define and use LIBSSH2_INVALID_SOCKET instead of INVALID_SOCKET
- sftp_write: cannot return acked data *and* EAGAIN
- sftp_read: avoid data *and* EAGAIN
- libssh2.h: add missing prototype for libssh2_session_banner_set()
- Drop upstream patches now included in release tarball
- Update to 1.4.0
- Added libssh2_session_supported_algs()
- Added libssh2_session_banner_get()
- Added libssh2_sftp_get_channel()
- libssh2.h: bump the default window size to 256K
- sftp-seek: clear EOF flag
- userauth: provide more informations if ssh pub key extraction fails
- ssh2_exec: skip error outputs for EAGAIN
- LIBSSH2_SFTP_PACKET_MAXLEN: increase to 80000
- knownhost_check(): don't dereference ext if NULL is passed
- knownhost_add: avoid dereferencing uninitialized memory on error path
- OpenSSL EVP: fix threaded use of structs
- _libssh2_channel_read: react on errors from receive_window_adjust
- sftp_read: cap the read ahead maximum amount
- _libssh2_channel_read: fix non-blocking window adjusting
- Add upstream patch fixing undefined function reference in libgcrypt backend
- BR: /usr/bin/man for test suite
Todd Zullinger
Paul Howarth
Kamil Dudka
Chris Weyl
Kevin Fenzi