--------------------------------------------------------------------------------Fedora Update Notification
FEDORA-2019-70a9d4f970
2019-04-05 00:00:52.421110
--------------------------------------------------------------------------------Name        : libssh2
Product     : Fedora 30
Version     : 1.8.2
Release     : 1.fc30
URL         : https://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).

--------------------------------------------------------------------------------Update Information:

This update addresses various overflow conditions that could result in possible
memory read/write out of bounds errors or zero byte allocations when connected
to a malicious server.
--------------------------------------------------------------------------------References:

  [ 1 ] Bug #1687313 - CVE-2019-3863 libssh2: Integer overflow in user authenticate keyboard interactive allows out-of-bounds writes
        https://bugzilla.redhat.com/show_bug.cgi?id=1687313
  [ 2 ] Bug #1687312 - CVE-2019-3862 libssh2: Out-of-bounds memory comparison with specially crafted message channel request
        https://bugzilla.redhat.com/show_bug.cgi?id=1687312
  [ 3 ] Bug #1687311 - CVE-2019-3861 libssh2: Out-of-bounds reads with specially crafted SSH packets
        https://bugzilla.redhat.com/show_bug.cgi?id=1687311
  [ 4 ] Bug #1687310 - CVE-2019-3860 libssh2: Out-of-bounds reads with specially crafted SFTP packets
        https://bugzilla.redhat.com/show_bug.cgi?id=1687310
  [ 5 ] Bug #1687307 - CVE-2019-3859 libssh2: Unchecked use of _libssh2_packet_require and _libssh2_packet_requirev resulting in out-of-bounds read
        https://bugzilla.redhat.com/show_bug.cgi?id=1687307
  [ 6 ] Bug #1687306 - CVE-2019-3858 libssh2: Zero-byte allocation with a specially crafted SFTP packed leading to an out-of-bounds read
        https://bugzilla.redhat.com/show_bug.cgi?id=1687306
  [ 7 ] Bug #1687305 - CVE-2019-3857 libssh2: Integer overflow in SSH packet processing channel resulting in out of bounds write
        https://bugzilla.redhat.com/show_bug.cgi?id=1687305
  [ 8 ] Bug #1687304 - CVE-2019-3856 libssh2: Integer overflow in keyboard interactive handling resulting in out of bounds write
        https://bugzilla.redhat.com/show_bug.cgi?id=1687304
  [ 9 ] Bug #1687303 - CVE-2019-3855 libssh2: Integer overflow in transport read resulting in out of bounds write
        https://bugzilla.redhat.com/show_bug.cgi?id=1687303
--------------------------------------------------------------------------------This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2019-70a9d4f970' at the command
line. For more information, refer to the dnf documentation available at
https://dnf.readthedocs.io/en/latest/command_ref.html

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/security/
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