SUSE-SU-2019:0655-1

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SUSE-SU-2019:0655-1

Summary: Security update for libssh2_org

Details: This update for libssh2_org fixes the following issues: Security issues fixed: - CVE-2019-3861: Fixed Out-of-bounds reads with specially crafted SSH packets (bsc#1128490). - CVE-2019-3862: Fixed Out-of-bounds memory comparison with specially crafted message channel request packet (bsc#1128492). - CVE-2019-3860: Fixed Out-of-bounds reads with specially crafted SFTP packets (bsc#1128481). - CVE-2019-3863: Fixed an Integer overflow in user authenticate keyboard interactive which could allow out-of-bounds writes with specially crafted keyboard responses (bsc#1128493). - CVE-2019-3856: Fixed a potential Integer overflow in keyboard interactive handling which could allow out-of-bounds write with specially crafted payload (bsc#1128472). - CVE-2019-3859: Fixed Out-of-bounds reads with specially crafted payloads due to unchecked use of _libssh2_packet_require and _libssh2_packet_requirev (bsc#1128480). - CVE-2019-3855: Fixed a potential Integer overflow in transport read which could allow out-of-bounds write with specially crafted payload (bsc#1128471). - CVE-2019-3858: Fixed a potential zero-byte allocation which could lead to an out-of-bounds read with a specially crafted SFTP packet (bsc#1128476). - CVE-2019-3857: Fixed a potential Integer overflow which could lead to zero-byte allocation and out-of-bounds with specially crafted message channel request SSH packet (bsc#1128474). Other issue addressed: - Libbssh2 will stop using keys unsupported types in the known_hosts file (bsc#1091236).

References: https://www.suse.com/support/update/announcement/2019/suse-su-20190655-1/, https://bugzilla.suse.com/1091236, https://bugzilla.suse.com/1128471, https://bugzilla.suse.com/1128472, https://bugzilla.suse.com/1128474, https://bugzilla.suse.com/1128476, https://bugzilla.suse.com/1128480, https://bugzilla.suse.com/1128481, https://bugzilla.suse.com/1128490, https://bugzilla.suse.com/1128492, https://bugzilla.suse.com/1128493, https://www.suse.com/security/cve/CVE-2019-3855, https://www.suse.com/security/cve/CVE-2019-3856, https://www.suse.com/security/cve/CVE-2019-3857, https://www.suse.com/security/cve/CVE-2019-3858, https://www.suse.com/security/cve/CVE-2019-3859, https://www.suse.com/security/cve/CVE-2019-3860, https://www.suse.com/security/cve/CVE-2019-3861, https://www.suse.com/security/cve/CVE-2019-3862, https://www.suse.com/security/cve/CVE-2019-3863