SUSE SLED12 / SLES12 Security Update : libssh2_org (SUSE-SU-2019:0655-1)

critical Nessus Plugin ID 122997

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Synopsis

The remote SUSE host is missing one or more security updates.

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).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

To install this SUSE 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 :

SUSE OpenStack Cloud 7:zypper in -t patch SUSE-OpenStack-Cloud-7-2019-655=1

SUSE Linux Enterprise Software Development Kit 12-SP4:zypper in -t patch SUSE-SLE-SDK-12-SP4-2019-655=1

SUSE Linux Enterprise Software Development Kit 12-SP3:zypper in -t patch SUSE-SLE-SDK-12-SP3-2019-655=1

SUSE Linux Enterprise Server for SAP 12-SP2:zypper in -t patch SUSE-SLE-SAP-12-SP2-2019-655=1

SUSE Linux Enterprise Server for SAP 12-SP1:zypper in -t patch SUSE-SLE-SAP-12-SP1-2019-655=1

SUSE Linux Enterprise Server 12-SP4:zypper in -t patch SUSE-SLE-SERVER-12-SP4-2019-655=1

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch SUSE-SLE-SERVER-12-SP3-2019-655=1

SUSE Linux Enterprise Server 12-SP2-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-SP2-2019-655=1

SUSE Linux Enterprise Server 12-SP2-BCL:zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2019-655=1

SUSE Linux Enterprise Server 12-SP1-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-SP1-2019-655=1

SUSE Linux Enterprise Server 12-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-2019-655=1

SUSE Linux Enterprise Desktop 12-SP4:zypper in -t patch SUSE-SLE-DESKTOP-12-SP4-2019-655=1

SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2019-655=1

SUSE Enterprise Storage 4:zypper in -t patch SUSE-Storage-4-2019-655=1

SUSE CaaS Platform ALL :

To install this update, use the SUSE CaaS Platform Velum dashboard. It will inform you if it detects new updates and let you then trigger updating of the complete cluster in a controlled way.

SUSE CaaS Platform 3.0 :

To install this update, use the SUSE CaaS Platform Velum dashboard. It will inform you if it detects new updates and let you then trigger updating of the complete cluster in a controlled way.

OpenStack Cloud Magnum Orchestration 7:zypper in -t patch SUSE-OpenStack-Cloud-Magnum-Orchestration-7-2019-655=1

Plugin Details

Severity: Critical

ID: 122997

File Name: suse_SU-2019-0655-1.nasl

Version: 1.6

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 3/21/2019

Updated: 5/20/2022

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2019-3855

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2019-3862

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:libssh2, p-cpe:/a:novell:suse_linux:libssh2-1, p-cpe:/a:novell:suse_linux:libssh2-1-debuginfo, p-cpe:/a:novell:suse_linux:libssh2_org-debugsource, cpe:/o:novell:suse_linux:12

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 3/20/2019

Vulnerability Publication Date: 3/21/2019

Reference Information

CVE: 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

Detections

Analytics