[SECURITY] Fedora 30 Update: libssh2-1.9.0-3.fc30

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Fedora Update Notification
FEDORA-2019-ec04c34768
2019-11-16 01:04:07.206774
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Name        : libssh2
Product     : Fedora 30
Version     : 1.9.0
Release     : 3.fc30
URL         : http://www.libssh2.org/
Summary     : A library implementing the SSH2 protocol
Description :
libssh2 is a library implementing the SSH2 protocol as defined by
Internet Drafts: SECSH-TRANS(22), SECSH-USERAUTH(25),
SECSH-CONNECTION(23), SECSH-ARCH(20), SECSH-FILEXFER(06)*,
SECSH-DHGEX(04), and SECSH-NUMBERS(10).

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Update Information:

- fix integer overflow in SSH_MSG_DISCONNECT logic (CVE-2019-17498)
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ChangeLog:

* Wed Oct 30 2019 Kamil Dudka <kdudka(a)redhat.com&gt; - 1.9.0-3
- fix integer overflow in SSH_MSG_DISCONNECT logic (CVE-2019-17498)
* Thu Jul 25 2019 Fedora Release Engineering <releng(a)fedoraproject.org&gt; - 1.9.0-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
* Thu Jun 20 2019 Paul Howarth <paul(a)city-fan.org&gt; - 1.9.0-1
- Update to 1.9.0
  - Fixed integer overflow leading to out-of-bounds read (CVE-2019-13115)
  - 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
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References:

  [ 1 ] Bug #1766903 - CVE-2019-17498 libssh2: integer overflow in SSH_MSG_DISCONNECT
logic in packet.c [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=1766903
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2019-ec04c34768' at the command
line. For more information, refer to the dnf documentation available at
http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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