openSUSE Security Update: Security update for libssh2_org
______________________________________________________________________________

Announcement ID: openSUSE-SU-2019:1075-1
Rating: moderate
References: #1091236 #1128471 #1128472 #1128474 #1128476
#1128480 #1128481 #1128490 #1128492 #1128493

Cross-References: CVE-2019-3855 CVE-2019-3856 CVE-2019-3857
CVE-2019-3858 CVE-2019-3859 CVE-2019-3860
CVE-2019-3861 CVE-2019-3862 CVE-2019-3863

Affected Products:
openSUSE Leap 42.3
______________________________________________________________________________

An update that solves 9 vulnerabilities and has one errata
is now available.

Description:

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).

This update was imported from the SUSE:SLE-12:Update update project.

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or “zypper patch”.

Alternatively you can run the command listed for your product:

– openSUSE Leap 42.3:

zypper in -t patch openSUSE-2019-1075=1

Package List:

– openSUSE Leap 42.3 (i586 x86_64):

libssh2-1-1.4.3-19.3.1
libssh2-1-debuginfo-1.4.3-19.3.1
libssh2-devel-1.4.3-19.3.1
libssh2_org-debugsource-1.4.3-19.3.1

– openSUSE Leap 42.3 (x86_64):

libssh2-1-32bit-1.4.3-19.3.1
libssh2-1-debuginfo-32bit-1.4.3-19.3.1

References:

https://www.suse.com/security/cve/CVE-2019-3855.html
https://www.suse.com/security/cve/CVE-2019-3856.html
https://www.suse.com/security/cve/CVE-2019-3857.html
https://www.suse.com/security/cve/CVE-2019-3858.html
https://www.suse.com/security/cve/CVE-2019-3859.html
https://www.suse.com/security/cve/CVE-2019-3860.html
https://www.suse.com/security/cve/CVE-2019-3861.html
https://www.suse.com/security/cve/CVE-2019-3862.html
https://www.suse.com/security/cve/CVE-2019-3863.html
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

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