-------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2019-f31c14682f 2019-03-23 02:56:03.380227 --------------------------------------------------------------------------------
Name : libssh2 Product : Fedora 29 Version : 1.8.1 Release : 1.fc29 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).
-------------------------------------------------------------------------------- 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. -------------------------------------------------------------------------------- ChangeLog:
* Tue Mar 19 2019 Paul Howarth paul@city-fan.org - 1.8.1-1 - Update to 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 * Mon Feb 4 2019 Paul Howarth paul@city-fan.org - 1.8.0-10 - Explicitly run the test suite in the en_US.UTF-8 locale to work around flaky locale settings in mock builders * Fri Feb 1 2019 Fedora Release Engineering releng@fedoraproject.org - 1.8.0-9 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild -------------------------------------------------------------------------------- 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-f31c14682f' 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 --------------------------------------------------------------------------------